Recently updated my wordpress website from version 2.5.16 to the new 2.6 build. Since then, activating the plugin leads to a critical error that brings down the site. I tried builds 2.6, 188.8.131.52, and the newest 2.6.1 and all three lead to the same error.
The error logs indicate a memory leak of some sort. Below is an example of the error message I receive.
Mar 24 18:15:18 2022] [warn] [client …] mod_fcgid: stderr: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 139700825355808 bytes) in /home/…/wp-content/plugins/gravityforms/gravityforms.php on line 147