What happened?
Description
The dashboard home page is not accessible due to this error after upgrading from Craft 4 Solo to Craft 5.
This project has been upgraded several times from version 2 -> 3 -> 4 over the years
Steps to reproduce
- Upgrade from Craft 4 to Craft 5
- Added bootstrap.php to root
- Updated craft file in root
- Updated index.php in webroot
- Initially had an error saying there was an issue with a cookie which was resolved by adding a security key using
php craft setup/security-key
Expected behavior
The dashboard should be accessible
Actual behavior
It throws an internal server error on the dashboard page. The front end is fully functional as is the rest of the backend (e.g. entries, assets etc.).

Craft CMS version
Craft Solo 5.0.4
PHP version
8.2
Operating system and version
Ubuntu 22.04
Database type and version
MariaDB 10.11.7
Image driver and version
Imagick 3.7.0 (ImageMagick 6.9.11-60)
Installed plugins and versions
CKEditor 4.0.3
What happened?
Description
The dashboard home page is not accessible due to this error after upgrading from Craft 4 Solo to Craft 5.
This project has been upgraded several times from version 2 -> 3 -> 4 over the years
Steps to reproduce
php craft setup/security-keyExpected behavior
The dashboard should be accessible
Actual behavior
It throws an internal server error on the dashboard page. The front end is fully functional as is the rest of the backend (e.g. entries, assets etc.).

Craft CMS version
Craft Solo 5.0.4
PHP version
8.2
Operating system and version
Ubuntu 22.04
Database type and version
MariaDB 10.11.7
Image driver and version
Imagick 3.7.0 (ImageMagick 6.9.11-60)
Installed plugins and versions
CKEditor 4.0.3