From a fresh install of 12.5 and then followed by installation of SP2, the 3CX phone system basically is working. When we try to run the reports, error occurred. An exception occurred LoginForm Error. Could not load file or assembly "loggerNet, Version=22.214.171.124, Culture=....." Found that LoggerNet v4.0_126.96.36.199 is installed under the Microsoft.Net\assembly\GAC_MSIL directory. Anyone has idea on how to add back LoggerNet 188.8.131.52 to the system ? Thanks.