OpenVPN client disconnected every second hour

Adding list extra 'disable-dco' under the client section in the ovpn-file gives the following error and doesn’t connect to OpenVPN at all:

Fri Dec 6 08:04:53 2024 daemon.err openvpn(Test)[5236]: Options error: Unrecognized option or missing or extra parameter(s) in /var/etc/openvpn-Test.conf:22: list (2.5.3)
Fri Dec 6 08:04:53 2024 daemon.warn openvpn(Test)[5236]: Use --help for more information.

Please advise of how I can proceed.