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Good day. I developed a simple Flask app in a WEB IDE, where it works correctly, and when I want to run it on the PythonAnywhere server I get this error:

2020-09-14 14:06:21 *** Starting uWSGI 2.0.17.1 (64bit) on [Mon Sep 14 14:06:20 2020] ***
2020-09-14 14:06:21 compiled with version: 5.4.0 20160609 on 07 May 2020 19:40:56
2020-09-14 14:06:21 os: Linux-4.4.0-1106-aws #117 SMP Thu May 7 18:33:20 UTC 2020
2020-09-14 14:06:21 nodename: green-liveweb8
2020-09-14 14:06:21 machine: x86_64
2020-09-14 14:06:21 clock source: unix
2020-09-14 14:06:21 pcre jit disabled
2020-09-14 14:06:21 detected number of CPU cores: 2
2020-09-14 14:06:21 current working directory: (unreachable)/etc/uwsgi/vassals
2020-09-14 14:06:21 detected binary path: /usr/local/bin/uwsgi
2020-09-14 14:06:21 *** dumping internal routing table ***
2020-09-14 14:06:21 [rule: 0] subject: path_info regexp: \.svgz$ action: addheader:Content-Encoding:gzip
2020-09-14 14:06:21 *** end of the internal routing table ***
2020-09-14 14:06:21 chdir() to /home/FloraStore/FLORA/
2020-09-14 14:06:21 limiting number of processes to 60...
2020-09-14 14:06:21 your processes number limit is 60
2020-09-14 14:06:21 your memory page size is 4096 bytes
2020-09-14 14:06:21 detected max file descriptor number: 123456
2020-09-14 14:06:21 building mime-types dictionary from file /etc/mime.types...
2020-09-14 14:06:21 552 entry found
2020-09-14 14:06:21 lock engine: pthread robust mutexes
2020-09-14 14:06:21 thunder lock: disabled (you can enable it with --thunder-lock)
2020-09-14 14:06:21 uwsgi socket 0 bound to UNIX address >     /var/sockets/florastore.pythonanywhere.com/socket fd 3
2020-09-14 14:06:21 Python version: 3.7.5 (default, Nov 14 2019, 22:26:37)  [GCC 5.4.0 20160609]
2020-09-14 14:06:21 Set PythonHome to /home/FloraStore/.virtualenvs/my-virtualenv
2020-09-14 14:06:21 *** Python threads support is disabled. You can enable it with --enable-threads ***
2020-09-14 14:06:21 Python main interpreter initialized at 0x17de840
2020-09-14 14:06:21 your server socket listen backlog is limited to 100 connections
2020-09-14 14:06:21 your mercy for graceful operations on workers is 60 seconds
2020-09-14 14:06:21 setting request body buffering size to 65536 bytes
2020-09-14 14:06:21 mapped 334256 bytes (326 KB) for 1 cores
2020-09-14 14:06:21 *** Operational MODE: single process ***
2020-09-14 14:06:21 initialized 38 metrics
2020-09-14 14:06:21 WSGI app 0 (mountpoint='') ready in 1 seconds on interpreter 0x17de840 pid: 1 (default >     app)
2020-09-14 14:06:21 *** uWSGI is running in multiple interpreter mode ***
2020-09-14 14:06:21 gracefully (RE)spawned uWSGI master process (pid: 1)
2020-09-14 14:06:21 spawned uWSGI worker 1 (pid: 2, cores: 1)
2020-09-14 14:06:21 metrics collector thread started
2020-09-14 14:06:21 spawned 2 offload threads for uWSGI worker 1
2020-09-14 14:06:24 announcing my loyalty to the Emperor...

That's not an error. That's normal startup logs for a web app. If your web app is returning error responses, the logs that will have useful information in them are your error logs.