USE or USELSX name must be a string constant

The name that you specified in a Use or UseLSX statement is not a quoted literal or a string constant though that is what is required. For example, to use the module LSModule :

Use LSModule			' Illegal
Use "LSModule"		' Legal

Const myModuleName$ = "LSModule"
Use myModuleName$		' Legal

Change the name to a quoted literal or string constant.