Lotus Domino Designer 8.5.1 Open Database Exception

I use Lotus Domino Designer 8.5.1 to open a database that already exists, this time in the client’s Problems will show a lot of errors, mainly in reference to the existing Agent class file will prompt the following LotusScript error:Description Resource Path Location Type

Error loading USE or USELSX module: com.xxxx.xxxx com.xxxx.xxxx.lss xxxx.nsf/Code/ScriptLibraries line x LotusScript Problem