The issue exists only in the debug log:: --- Logging error --- Traceback (most recent call last): File "/usr/lib/python3.9/logging/__init__.py", line 1086, in emit stream.write(msg + self.terminator) UnicodeEncodeError: 'ascii' codec can't encode characters in position 79-89: ordinal not in range(128) Call stack: File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 2464, in __call__ return self.wsgi_app(environ, start_response) File "/usr/local/searx/searx-src/searx/webapp.py", line 1316, in __call__ return self.app(environ, start_response) File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/werkzeug/middleware/proxy_fix.py", line 169, in __call__ return self.app(environ, start_response) File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 2447, in wsgi_app response = self.full_dispatch_request() File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 1950, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 1936, in dispatch_request return self.view_functions[rule.endpoint](**req.view_args) File "/usr/local/searx/searx-src/searx/webapp.py", line 766, in search number_of_results=format_decimal(number_of_results), File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask_babel/__init__.py", line 458, in format_decimal locale = get_locale() File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask_babel/__init__.py", line 226, in get_locale rv = babel.locale_selector_func() File "/usr/local/searx/searx-src/searx/webapp.py", line 249, in get_locale logger.debug("%s uses locale `%s` from %s", request.url, locale, locale_source) Unable to print the message and arguments - possible formatting error. Use the traceback above to help find the error. Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>