Zend Guard Loader issue

I have moved to new hosting with PHP 5.3. There is "Zend Guard Loader (Runtime for PHP 5.3)" 5.5.0.
I have faced with this error
--------------------------------
Fatal error: Incompatible file format: The encoded file has format major ID 1, whereas the Loader expects 4 in xxxxxx/public_html/forum/vbseo.php on line 0
--------------------------------
It is "vBulletin 3.6.2" with "vBSEO 3.0.0 RC6" installed in the forum.

Is there a way to fix this issue?

You don't have vBSEO assigned to your username. We only offer support to License owners. If youı purchased vBSEO please PM your payment transaction id and your forum url.

Support is offered for verified vBSEO customers only.

If you hold a valid license, please open a ticket with your tranasctionID from your payment receipt along with your forum URL so we can assign it to your account.
http://www.vbseo.com/support/

If you are working on behalf of someone else as a contractor, they need to add you to their Priority Support list:
http://www.vbseo.com/usercp/customer_profile/