ERROR in mysqli_driver.php

@nvv,
More information is needed.  Have you configured CI correctly (the database parameters)? Is PHP configured correctly? What version of PHP are you using? Is you MySQL database active?  What version of CI are you using?

CI = 3.1.7
APACH-PHP7
MySQL-5.7
PHP7

Until the error, everything worked fine. Now everything is working fine.

Increased the parameters in the mysql config.
But the mistake was. Perhaps you need to test this point.


Thanks!