Looks to me like a once off is running on an old source tree.
The actual method looks like it is there:
Can you try rebuilding your container to see if this goes away?
cd /var/discourse
./launcher rebuild app
Looks to me like a once off is running on an old source tree.
The actual method looks like it is there:
Can you try rebuilding your container to see if this goes away?
cd /var/discourse
./launcher rebuild app