unable to start electrumx service and error message as below:

:44:33 Electrum69 electrumx_server.py[10069]: INFO:root:ElectrumX server starting
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]: Traceback (most recent call last):
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]:   File "/usr/local/lib/python3.6/dist-packages/electrumx-1.2-py3.
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]:   File "/usr/local/lib/python3.6/dist-packages/electrumx-1.2-py3.
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]:     self.coin = Coin.lookup_coin_class(coin_name, network)
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]:   File "/usr/local/lib/python3.6/dist-packages/electrumx-1.2-py3.
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]:     .format(name, net))
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]: lib.coins.CoinError: unknown coin xxx and network mainnet co
Jun 18 00:44:33 Electrum69 electrumx_server.py[10069]: CRITICAL:root:ElectrumX server terminated abnormally
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please provide solution.