Modmail crashing when modmail channel gets deleted

[Ekolllon]

Here is the error message:

0Starting Modmail 3.8.0 on Node.js 20.17.0 (x64) )Loading configuration from config.ini... Configuration ok! Using an SQLite database: /home/node/db/data.sqlite Preparing plugins... Connecting to Discord... 6Connected! Waiting for servers to become available... Initializing... Loading plugins... <Loaded 17 plugins (17 built-in plugins, 0 external plugins)

Done! Now listening to DMs.

"Logged in as modmail#6814 4[NOTE] Creating new thread channel kullskull9961 -[NOTE] Creating new thread channel skaj9055_ 4Closing thread 70eba9ac-5d63-48eb-80e7-576da55de603 %Deleting channel 1329559377857744917 ,Error: Error: Invalid channel ID: undefined N at Client.getChannel (/home/node/node_modules/eris/lib/Client.js:2447:13) R at new Message (/home/node/node_modules/eris/lib/structures/Message.js:65:33) D at /home/node/node_modules/eris/lib/structures/Message.js:94:21 at Array.map () R at new Message (/home/node/node_modules/eris/lib/structures/Message.js:85:54) R at Collection.add (/home/node/node_modules/eris/lib/util/Collection.js:61:13) P at Shard.wsEvent (/home/node/node_modules/eris/lib/gateway/Shard.js:946:55) ( ...stack trace truncated to 8 lines

[rubyowo]

See #812