Problem with putting www in dmain name

[ASTERIOS MOSCHOPOULOS]

Hello

 

I have the following problem:

 

when i change my domainname.com to www.domainname.com from .htaccess, jreviews administration panel and add new listing button from site does not working properly (and load all the time without stopping).

 

What is the problem?  Can anyone help me to solve this?

[Alejandro]

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[ASTERIOS MOSCHOPOULOS]

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