Missing access guide

Walk error 50001 Missing Access: membership, View Channel, and overwrites.

Bot is in the server
50001 is often just “the bot was never invited”.
View Channel is allowed
A deny overwrite on the channel beats a role allow.
The id is a channel the bot can see
Unknown Channel (10003) is a different code. 50001 means the channel exists and the bot may not see it.
Role order is not the issue you think
Missing Access is visibility. Manage Messages and similar failures are 50013.
You are not blocked on intents instead
Intent failures drop the gateway. 50001 is an HTTP response.

50001

HTTP 403 with code 50001. Fix membership and View Channel before rotating the token.