403 errors when trying to use php 7

#1
hi, 2 of my main sites now require php 7 in order to update them. the update script on 5.5.6 says lost connection to server after several minutes. I was told php 7 would fix that issue.
i compiled php 7 for litespeed, and in plesk changed the php version to match the ls compiled version and i get a 403 forbidden every time
what am i doing wrong and what are the proper steps to get php 7 working on these 2 sites
 
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