Prestashop error log with zend extensions?

[VAULTLLC]

Hello,

 

I was sent a very long error log from my hosting company this morning. I have no idea what it means or where it got zend cart from. Here is an example of one of the errors: [Mon Jun 20 06:44:47.991713 2016] [:error] [pid 252454:tid 140643354765056] [client 70.63.64.212:50993]  doesn't appear to be a valid Zend extension, referer: (a link to my backend appears here)

 

Has anyone had this problem before? There is about 200 more errors all having the same description at different times with different referral links.

 

Thanks,

Zack