Assisted Ms. Gley in checking the error on IAS. " Invalid use of Null, contact administrator". Checked if  SQLPerEd was already installed on her PC. Upon checking SQLPerEd is not yet installed. Advised the technical to install sqlpered. After installing, the same error occurs, I registered her VBFunctions.dll, then checked the JDASysIni and SQLSysIni. The same error persist. I advised the technical to try reinstalling the IAS. Waiting for the response from the user.