# \#array-format **URL:** https://community.gravityforms.com/tag/array-format/2821.md [Latest](https://community.gravityforms.com/latest.md) · [Categories](https://community.gravityforms.com/categories.md) · [Tags](https://community.gravityforms.com/tags.md) --- ## [Fatal error in GF triggered by a visitor](https://community.gravityforms.com/t/fatal-error-in-gf-triggered-by-a-visitor/17217)
**Author:** [@user5aba2ea99bfbf5.2](https://community.gravityforms.com/u/user5aba2ea99bfbf5.2)\ **Replies:** 1\ **Last updated:** [April 8, 2024, 1:42pm UTC](https://community.gravityforms.com/t/fatal-error-in-gf-triggered-by-a-visitor/17217 "2024-04-08T13:42:19Z")
curl -g 'wp-admin/admin.php?page\[testing\]=1' PHP Fatal error: Uncaught TypeError: strtolower(): Argument #1 ($string) must be of type string, array given in /web/app/plugins/gravityforms/gravityforms.php:1735 Stack tra…