srcds "Server uses different class tables"

I’ve been running a gmod server for a month or two. Just about the time of the most recent gmod update, I tried to enter my server and was disconnected with the message: “Disconnected: Server uses different class tables.” I updated my server through hldsUpdateTool, but I still received the message. Any ideas on what this is and how to fix it?

What did you run to update the server?

hldsupdatetool -command update -game “garrysmod” -dir C:\srcds
hldsupdatetool -command update -game “Counter-Strike Source” -dir C:\srcds
hldsupdatetool -command update -game “dods” -dir C:\srcds
hldsupdatetool -command update -game “hl2mp” -dir C:\srcds
hldsupdatetool -command update -game “tf” -dir C:\srcds
hldsupdatetool -command update -game “sin” -dir C:\srcds

run it for garrysmod and put -verifyall in the run options.

It works. Thanks!

Dammit Fetus.
But yes, the server works now.
Thanks!