Problem with long URLs

I have a problem with url long, it cuts some parts of the url and generates me a blank page.

I can disable this features or i need to uninstall the plug-in?

Example of a cutted URL:
http://www.mysiteurl.it/test/?a=9002691&b=GfTC9QUmzHLW2zwpKSr8dsfv_R_k09dsJ_kSD3kWkKBDGD7S6asYH3qaddMKdP7qgsadsf5AvesJ3UHsdsdadPAYNWAX_MldsdsJX5Qj9Idssadsad5YXiSnGFDGFDJNG9c9K6W2V0vcldsDASFqONtK*y3bWznl02dsA*dsdsads*FSG_auXAZKiO_id2283cZjSMhuK0M1g1fwF1DnhAsdasdsd7tLdsd08NTGd6xvudaaPwgNTTkIBmOfLv2Pz9*OsaddsxK8BXsddsdsdadsssddWO2_o4esd