Gestione return code diversi da 200

[lucamemini]

In produzione ho alcuni errori di questo tipo:

==format_exec==
Traceback (most recent call last):
File "main.py", line 1037, in process_single_mail
misp_id = check_MISP_PROD(match[0])
File "main.py", line 1158, in check_MISP_PROD
att = misp_PROD.search(controller='attributes', **kwargs)
File "/usr/local/lib/python3.6/dist-packages/pymisp/api.py", line 2473, in search
normalized_response = self._check_json_response(response)
File "/usr/local/lib/python3.6/dist-packages/pymisp/api.py", line 3400, in _check_json_response
r = self._check_response(response, expect_json=True)
File "/usr/local/lib/python3.6/dist-packages/pymisp/api.py", line 3417, in _check_response
raise MISPServerError(f'Error code 500:\n{response.text}')
pymisp.exceptions.MISPServerError: Error code 500:

<title>ERROR: The requested URL could not be retrieved</title> <style type="text/css">