Problem running docker: Failed to parse 'stellar-core.cfg'

[MBakhshi96]

I am trying to run a private network with 3 nodes, using the way mentioned in the Readme, But there is an issue with the core container. When I try to start the first node, I get an Error stating

<startup> [default FATAL] Got an exception: Failed to parse 'stellar-core.cfg':
Unidentified trailing character 'c'---did you forget a '#'? at line 74 [CommandLine.cpp:1117]

It seems there is a problem with stellar-core.cfg file. I checked stellar-core.cfg.tmpl but couldn't fix the problem.