Flask output breaks terminal encoding, how to fix?

Question

Command line

Hello.
This is the first time I've encountered this problem, I don't even know how to google it.
The fact is that when the application starts, everything works well, I see messages about the successful response of the server, to such and such an ip address, with such and such a code.
However, from time to time strange packets arrive (apparently from intruders who ping the servers), their content cannot be read, since it is partially encrypted. The problem is that after some N time (for example, a day), I go to read the console output from the server, and I see this there:


How can I deal with this, please tell me.