# URGENT: I upgraded to Version 2.9.0 and now my forms are previewing blank and no longer work \[RESOLVED\] **URL:** \ **Category:** Get Help\ **Tags:** caching\ **Created:** [November 27, 2024, 7:18pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555 "2024-11-27T19:18:58Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 7:18pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/1 "2024-11-27T19:18:58Z")
**Need help urgently.** I did an upgrade of the Gravity forms plugin to Version 2.9.0. No my forms no longer work. They are coming up blank. I tried turning on WP debug but no wp\_content/debug.log shows up. Using Developer Mode in Chrome shows: JQMIGRATE: Migrate is installed, version 3.4.0 Header.638dcbf1.js:176 Download the React DevTools for a better development experience: [React Developer Tools – React](https://reactjs.org/link/react-devtools) 2index.507d5a45.js:1 Uncaught TypeError: Cannot read properties of null (reading ‘id’) at index.507d5a45.js:1:503 at Array.find () at te (index.507d5a45.js:1:480) at ie (index.507d5a45.js:6:587) at Jo (Header.638dcbf1.js:128:378) at s1 (Header.638dcbf1.js:132:5553) at v3 (Header.638dcbf1.js:134:11765) at HTMLUnknownElement.ue (Header.638dcbf1.js:55:33014) at Object.tm (Header.638dcbf1.js:55:33349) at bd (Header.638dcbf1.js:55:34313)Understand this errorAI Header.638dcbf1.js:132 The above error occurred in the component: ``` at ie (chrome-extension://lhaopfkppdccofghkhiijjjbakjeblgp/assets/js/index.507d5a45.js:6:282) ``` Consider adding an error boundary to your tree to customize error handling behavior. Visit [Component – React](https://reactjs.org/link/error-boundaries) to learn more about error boundaries. n1 @ Header.638dcbf1.js:132Understand this errorAI Header.638dcbf1.js:147 Uncaught TypeError: Cannot read properties of null (reading ‘id’) at index.507d5a45.js:1:503 at Array.find () at te (index.507d5a45.js:1:480) at ie (index.507d5a45.js:6:587) at Jo (Header.638dcbf1.js:128:378) at s1 (Header.638dcbf1.js:132:5553) at v3 (Header.638dcbf1.js:134:11765) at H1 (Header.638dcbf1.js:151:2146) at W3 (Header.638dcbf1.js:147:22116) at jb (Header.638dcbf1.js:147:21699) ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 8:09pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/2 "2024-11-27T20:09:11Z")
I’ve tracked this down to conditional logic. I created a new form and all was going well until I added a condition for the product field to show up when another dropdown was selected. If I do this the entire form shows up blank. ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 8:13pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/3 "2024-11-27T20:13:47Z")
I fixed my form not to have conditional logic. The form shows up but the prices for my Drop Down product are not showing up and I cannot get to the Next page!! Please help. How do I roll back? New error on clicking Next: Uncaught TypeError: Cannot read properties of undefined (reading ‘handleButtonClick’) at HTMLInputElement.onclick (?gf\_page=preview&id=7:90:211) onclick @ ?gf\_page=preview&id=7:90 ---
**Author:** ![chrishajer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/chrishajer/32/88_2.png) [@chrishajer](https://community.gravityforms.com/u/chrishajer)\ **Post date:** [November 27, 2024, 8:26pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/4 "2024-11-27T20:26:08Z")
Hi Al. Based on the number of issues you are reporting, I recommend the following: 1. Install the latest Gravity Forms release. That is currently 2.9.0.4. Because this is an interim release, you must manually download that from your downloads page and install it via the plugins screen of your WordPress dashboard. 2. Clear any cache and CDN, including Cloudflare. If you are using Rocketloader, be sure you disable that. 3. Test your form. If it still does not work, check for conflicts with your theme and any plugins (including custom code in either location.). You can use these steps: [Testing Theme/Plugin Conflict](https://docs.gravityforms.com/testing-theme-plugin-conflict/) 4. If you do not find a conflict, please open a support ticket. Include your system status report: [Checking Your Environment Details - Gravity Forms Documentation](https://docs.gravityforms.com/checking-environment-details/#sending-system-reports) You can open the ticket here: [https://www.gravityforms.com/open-support-ticket/technical/](https://www.gravityforms.com/open-support-ticket/technical/) As far as rolling back, that is not covered by support, and it would be best if you figure out what is breaking the forms. However, you can install version 2.8.18 over the installed 2.9.x version (from your plugins page.). We have not experienced any issues when rolling back in that way, but you will want to make a database backup before rolling back, just in case it does not work correctly on your site. Thank you. ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 8:47pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/5 "2024-11-27T20:47:43Z")
Can you explain how to install 2.8.18? ---
**Author:** ![chrishajer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/chrishajer/32/88_2.png) [@chrishajer](https://community.gravityforms.com/u/chrishajer)\ **Post date:** [November 27, 2024, 8:50pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/6 "2024-11-27T20:50:19Z")
First, make a database backup or a full site backup (including the database). Then, install a copy of Gravity Forms 2.8.18 from the Plugins page of your dashboard. After installing that older copy, clear any cache or CDN. As I mentioned previously, this is unsupported and the preferred solution is to find out what is causing the conflict with 2.9.0.x. Thank you. ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 9:03pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/7 "2024-11-27T21:03:40Z")
But how do I install the older version? ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 9:06pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/8 "2024-11-27T21:06:56Z")
I actually have a backup of the DB from before the 2.9 upgrade. And I just grabbed the lates DB and site backup. ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 9:41pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/9 "2024-11-27T21:41:36Z")
I tried upgrade to 2.9.0.4 and no change ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 27, 2024, 9:44pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/10 "2024-11-27T21:44:11Z")
Since I have a DB backup from 2.18.? Can I restore that after installing 2.18? I still need the 2.18 version. ---
**Author:** ![user6474c5d78598c239](https://avatars.discourse-cdn.com/v4/letter/u/e0b2c6/32.png) [@user6474c5d78598c239](https://community.gravityforms.com/u/user6474c5d78598c239)\ **Post date:** [November 29, 2024, 6:22pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/11 "2024-11-29T18:22:23Z")
I want to report that this is fixed. It seems it was a caching issue. Remember to clear **BOTH** the Browser and Site caches! In Chrome/windows CTRL+F5 to do a cleanup/clear. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/gravityforms1/original/2X/f/fef63f0599c45e0218c30d9f5d7ca8bff9b00189.png) [@system](https://community.gravityforms.com/u/system)\ **Post date:** [November 30, 2024, 6:22pm UTC](https://community.gravityforms.com/t/urgent-i-upgraded-to-version-2-9-0-and-now-my-forms-are-previewing-blank-and-no-longer-work-resolved/18555/12 "2024-11-30T18:22:25Z")
This topic was automatically closed 24 hours after the last reply. New replies are no longer allowed.