[Error Message] MySQL mismatch error

[centience]

- MySQL mismatch error when submitting a post.
- Quick Reply constantly loads and doesn't display unless making a hard-refresh.
- PHP 7.4.30
- MyBB 1.8.32
- MySQLi 5.7.29

We’re using the latest MyBB version, but using php 7.4 
The reason for not using the latest and greatest PHP is so we can use the account switcher plug-in

[Matt]

Go to ACP > Configuration > Server and Optimization Options > Error Type Medium > set this to errors and warnings, and it should output the SQL error itself.