pgsql_old folder taking up space

pgsql_old folder taking up space

Good morning,

We have a folder under ManageEngine>ADAudit Plus>Patch>ManageEngine_ADAudit_Plus-5.1.0-SP-2.0.0 called pgsql_old.  It is taking up a very large amount of space.  I suspect this can be deleted, as it seems to be an old instance of pgsql, hence the name.  Can this be deleted to clear up space?