Your stand-alone table's data source is a personal geodatabase.
- Convert your personal geodatabase to a file geodatabase or enterprise geodatabase.
- Alternatively, you can remove the stand-alone table if it is not needed in the map service.
ArcGIS servers no longer support layers referencing personal geodatabases.
Generally speaking, the best performance will be achieved by using datasets that are native to ArcGIS, that is, geodatabases and key raster and image datasets. In many cases, your unsupported dataset can be loaded into a geodatabase feature class that can then be used in a basemap layer or in a published service.
For best performance with geodatabases, use either enterprise geodatabases or file geodatabases. In some cases, with many simultaneous users, enterprise geodatabases are faster. Since enterprise geodatabases are DBMS based, they will scale better than file geodatabases in situations where you have a large number of users (hundreds of users or more).