Why is authorization successful on prod, but not on LAN?

Question

Laravel

Good afternoon :)
In general, now I wanted to deploy the project from production. And then I saw a strange incident.
There's an old Laravel 3.
And nothing is set up properly. I had to pull straight from the sale. But how I unfolded it myself. Authorization says wrong password to enter the admin panel.
What could be the problem? The base is the same as on the sale.
Where to dig?

Answer 1

Find in the source what he said, put a breakpoint there and look in the debugger .
For those who do not know how to use a debugger, look at the trace ( debug_backtrace() ), then poke about five echo and find out what's wrong.
For those who do not know how to trace - put echo in all suspicious places. Thousands of them.