How to fix such OpenCart error?

Question

opencart

Warning: POST Content-Length of 427892364 bytes exceeds the limit of 104857600 bytes in Unknown on line 0
Warning: session_start(): Cannot send session cache limiter - headers already sent in C:\OpenServer\domains\alfamega\system\library\session .php on line 21Warning: Cannot modify header information - headers already sent in C:\OpenServer\domains\alfamega\system\library\response.php on line 12
The error appears when importing files, it seems that the limit has been increased everywhere, but something swears here , help!

Answer 1

Warning: POST Content-Length of 427892364 bytes exceeds the limit of 104857600 bytes in Unknown on line 0
apparently not increased everywhere