Milton Hello!
Please try to identify your tracker on id.wialon.net as one of the devices Xeelectech LK106, Rilla G19, ST-901.
If your tracker is determined, take a screenshot, write down the name of the model of the tracker and the identified ID (may coincide with the IMEI, may be part of it with zero or without or maybe separate ID of tracker).
After that, return to the application in the unit settings (unit menu - Settings - Common Settings), specify the determined model (LEGACY category) and ID. After that, configure the tracker on the defined server and port.