Hello there, I need some help here

My website starting to show a error since today, it's the second time this happen and after like 2 days I install AbanteCart. I didn't nothing, it simply started to show a error message, I can't access website or admin panel. 

cabeloonline.com/

There has been an error processing your request

Please check error log for more info. You can check error log in the control panel if it is functional. Otherwise, refer to error log located in your web server
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I will appreciate any help.