I found KB 63030. Can you access that file and just manually type in the path? Or maybe copy it from another workstation?
Open windows explorer and go to C:\ProgramData\Sage Software\SageMASIntelligenceXX folder (XX=version number (i.e. 51=2014, 52=2015)
Open config.ini file in Notepad
Verify the path of the repository folder is correct. If it is not correct, paste the correct path (Reminder, the path must a UNC path)
Example:
[Repository]
Path=\\<server name>\SI510
Click File, Save
https://support.na.sage.com/selfservice/viewdocument.do?noCount=true&externalId=63030&sliceId=1&docLink=true&languageId=&isDocLink=true¤tmsID=MS_Customer&cmd=&openedFromDocument=true&ViewedDocsListHelper=com.kanisa.apps.common.BaseViewedDocsListHelperImpl