Last error: beta polling error: unable to receive poll response: unable to read message length: unexpected EOF

[dimova]

After asking me to change to server's version, I get the following error on coder:
What should I do?
desi@MF-RCC1ABGOW65H:/mnt/c/Program Files/WSL$ mutagen sync resume ct-msgFull
Connecting to agent (POSIX)...
Error: unable to resume session: unable to connect to beta: unable to connect to endpoint: unable to dial agent endpoint: unable to handshake with agent process: unable to receive server magic number: EOF (error output: Connection timed out during banner exchange)
desi@MF-RCC1ABGOW65H:/mnt/c/Program Files/WSL$ mutagen sync list

Name: ct-msgFull
Identifier: sync_TxtdrfQFonOM37vuKDmmwBZtQQ1IBBQi7VkbIILDrGM
Alpha:
URL: /mnt/c/MSG/AppServer/webapps
Connected: Yes
Beta:
URL: coder.ct:~/tomcat-instances/msg/AppServer/webapps
Connected: No
Last error: beta polling error: unable to receive poll response: unable to read message length: unexpected EOF
Status: Connecting to beta

Name: ct-msmFull
Identifier: sync_s7MkIJZRgtW26mCVtBxOwzFfwMpdBN7prQWRHGuc2Sq
Alpha:
URL: /mnt/c/MSM/AppServer/webapps
Connected: No
Beta:
URL: coder.ct:~/tomcat-instances/msm/AppServer/webapps
Connected: No
Status: [Paused]

Name: ct-bo
Identifier: sync_5u12kcMxsqRTb9kyk91YP32qKsCczaAPaNfjgLFjq3r
Alpha:
URL: /mnt/c/BO/webapps
Connected: No
Beta:
URL: coder.ct:~/tomcat-instances/bo/webapps
Connected: No
Status: [Paused]