Script Error

Hello,

I'm having some trouble with CRM Dynamics 365. When oppening an opportunitty (creating a new one, or accessing an existing opportunity), I'm allways receiving the following message:

"Script Error
One of the scripts for this record has caused an error. For more details, download the log file.
TypeError: Cannot read property 'opportunity' of undefined at eval (eval at RunHandlerInternal (stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx), <anonymous>:1:9)"

The only plugin I've incorporated in my CRM is adx for deploying partner portals.

Any thoughts on how can I solve this script error?

The log Files presents the following information:

TypeError: Cannot read property 'opportunity' of undefined
at eval (eval at RunHandlerInternal (stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx), <anonymous>:1:9)
at RunHandlerInternal (stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx)
at RunHandlers (stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx)
at OnScriptTagLoaded (stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx)
at stratioautomotive.crm4.dynamics.com/.../ClientApiWrapper.aspx

Thanks in advance.