Hi,
I had the same damned issue, the provider erase any files that use a standard php function, beacuse the
don't tuned fine the anti-malware system.
As I found and check according to OrdaSoft, the incriminated function is a standard one of php, the "base64_decode".
I quote what OrdaSoft described me:
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In file that your provider deleted, we've used standard php function base64_decode
php.net/manual/en/function.base64-decode.php
We used it for data storage and increasing page speed.
We believe that antimalware software reports this function, because it can be used in malicious purposes. But other functions can so.
Contact your provider and ask how their antimalware software deals with this php function. You can send them link to php.net and describe that it is standard function and explain that it was used properly.
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So,I hardly insisted on the point with my provider and they follow me, they put tha kind of function in whitelist
It works! I hope you find how to solve with your ISP...
Bye