A Freelancer has already built a basic web page for me that included a PayPal connection. It accepts a code, deciphers the information in that code, connects to PayPal, and returns a validation code if the payment is successful.
It is written in PHP and seems to use a framework called Larvel. It worked initially, but after a few months it stopped working and now produces an error log (attached). I went through the code hoping to be able to find the problem even though I have no PHP experience, but I cannot find any reference to anything shown in the error log. I contacted the Freelancer who created the page and they demanded more money to fix their work. That is not the sort of Freelancer I wish to work with.
I am looking for an experienced PHP programmer to look at the error log, understand what is causing the problem, and and fix the page.