'Python Could not import class

After transfer zope2 app from ubuntu12 to centos7, i get some errors that indicate that the classes are not loaded. How to check if all required libs of python are imported? How to fix these errors:

 WARNING OFS.Uninstalled Could not import class 'Photos' from module 'Products.Ezonus.projektai2.ezonus2.control.system.Photos'
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 WARNING OFS.Uninstalled Could not import class 'FailuArchyvas' from module 'Products.Ezonus.projektai2.ezonus2.control.system.FailuArchyvas'
python-2.7plonezope


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