The comp that is being tested/used for the punchh discount has not been defined in the POS system. Please update the configuration for this discount on your POS System. Make sure the the comp "number" is not in POS database is the same as the one defined in Punchh.
The log file will most likely show:
2019-01-30 16:22:38,587 DEBUG AlohaPunchh: entered punchh code: %12345678
2019-01-30 16:22:38,587 INFO AlohaPunchh: Attempting to validate code: %12345678
2019-01-30 16:22:38,587 INFO AlohaPunchh: Verifying punchh comp 129 defined exists..
2019-01-30 16:22:38,587 INFO AlohaPunchh: cmp rows: 50
2019-01-30 16:22:38,587 ERROR AlohaPunchh: The defined comp 129 was not found in the CMP db.
2019-01-30 16:22:38,587 INFO AlohaPunchh: Emp logged on: . trm 1 chk 1111
2019-01-30 16:22:38,618 WARN AlohaPunchh: Comp can not be applied. The comp configured for punchh 129 is NOT in CMP db.