[regexp] CRITICAL Failed to parse regex: \?.*\=restapi.*+ (multiple repeat)

[patsevanton]

server {
    listen 80 default_server;
    server_name localhost;
    location ~* \?.*\=restapi.*+ {
    }
}

gixy default
[regexp] CRITICAL Failed to parse regex: ?.=restapi.+ (multiple repeat)
Traceback (most recent call last):
File "/home/user/.local/bin/gixy", line 11, in
sys.exit(main())
File "/home/user/.local/lib/python2.7/site-packages/gixy/cli/main.py", line 166, in main
yoda.audit(path, fdata, is_stdin=False)
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/manager.py", line 27, in audit
self._audit_recursive(self.root.children)
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/manager.py", line 53, in _audit_recursive
self._audit_recursive(directive.children)
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/manager.py", line 48, in _audit_recursive
self._update_variables(directive)
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/manager.py", line 63, in _update_variables
for var in directive.variables:
File "/home/user/.local/lib/python2.7/site-packages/cached_property.py", line 26, in get
value = obj.dict[self.func.name] = self.func(obj)
File "/home/user/.local/lib/python2.7/site-packages/gixy/directives/block.py", line 119, in variables
for name, group in regexp.groups.items():
File "/home/user/.local/lib/python2.7/site-packages/cached_property.py", line 26, in get
value = obj.dict[self.func.name] = self.func(obj)
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/regexp.py", line 1004, in groups
for name, parsed in extract_groups(self.parsed).items():
File "/home/user/.local/lib/python2.7/site-packages/gixy/core/regexp.py", line 1029, in parsed
raise e
gixy.core.sre_parse.sre_constants.error: multiple repeat