Hi,
What is your SAP version and PL?
Please check with following SAP notes:
1789459 - How to do a clean reinstallation of XL
Reporter
1787984 - Current Supported Platforms of XL Reporter
858475 - Method '~' of Object '~' failed appears connecting to
DI API -Applicable to 2004 A version
Thanks & Regards,
Nagarajan