2018-01-18T07:20:57.929Z [2536] - error: Error: Callback was already called.
at /var/www/nodebb/node_modules/async/dist/async.js:955:32
at Object.Plugins.fireHook (/var/www/nodebb/src/plugins/hooks.js:101:4)
at /var/www/nodebb/src/groups/data.js:56:13
at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5310:14)
at next (/var/www/nodebb/node_modules/async/dist/async.js:5317:9)
at /var/www/nodebb/node_modules/async/dist/async.js:958:16
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
Got an error after updating to 4.2.0
2018-01-18T07:20:57.929Z [2536] - error: Error: Callback was already called. at /var/www/nodebb/node_modules/async/dist/async.js:955:32 at Object.Plugins.fireHook (/var/www/nodebb/src/plugins/hooks.js:101:4) at /var/www/nodebb/src/groups/data.js:56:13 at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5310:14) at next (/var/www/nodebb/node_modules/async/dist/async.js:5317:9) at /var/www/nodebb/node_modules/async/dist/async.js:958:16 at _combinedTickCallback (internal/process/next_tick.js:138:11) at process._tickCallback (internal/process/next_tick.js:180:9)