I believe the class structure of PHP code between 5.2 and 5.3 differs to the point where it's causing this problem for you. You should be able to check out our article on changing your PHP version of your account to hopefully correct this error:
How to switch between PHP version
If you're still having issues I would suggest submitting a ticket so that our system administration team can take a deeper look into this problem for you.
In order to submit a ticket, please shoot an e-mail to (email@example.com) being sure to include your username, and the original cPanel password of your account or the last 4 digits of the credit card on file for verification. Or you can submit a ticket directly through our support interface here:
Submit a support ticket
Hope that solves your problem, if you have any further questions at all don't hesitate to ask!
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