**List of steps to reproduce** (step by step, including full links if applicable):
* Run `./pwb.py touch -page:Main\ Page`
**What happens?**:
```
File "/home/user/src/pywikibot/./pwb.py", line 414, in <module>
if not main():
File "/home/user/src/pywikibot/./pwb.py", line 406, in main
run_python_file(filename,
File "/home/user/src/pywikibot/./pwb.py", line 106, in run_python_file
exec(compile(source, filename, 'exec', dont_inherit=True),
File "./scripts/touch.py", line 117, in <module>
main()
File "./scripts/touch.py", line 111, in main
bot_class(generator=gen, **options).run()
File "/home/user/src/pywikibot/pywikibot/bot.py", line 1600, in run
self.treat(page)
File "./scripts/touch.py", line 55, in treat
page.touch(botflag=self.opt.botflag)
File "/home/user/src/pywikibot/pywikibot/page/__init__.py", line 1368, in touch
self.save(summary=summary, watch='nochange',
File "/home/user/src/pywikibot/pywikibot/tools/_deprecate.py", line 404, in wrapper
return obj(*__args, **__kw)
File "/home/user/src/pywikibot/pywikibot/tools/_deprecate.py", line 404, in wrapper
return obj(*__args, **__kw)
File "/home/user/src/pywikibot/pywikibot/page/__init__.py", line 1211, in save
self._save(summary=summary, watch=watch, minor=minor, botflag=botflag,
File "/home/user/src/pywikibot/pywikibot/page/_decorators.py", line 54, in wrapper
handle(func, self, *args, **kwargs)
File "/home/user/src/pywikibot/pywikibot/page/_decorators.py", line 33, in handle
func(self, *args, **kwargs)
File "/home/user/src/pywikibot/pywikibot/page/__init__.py", line 1223, in _save
done = self.site.editpage(self, summary=summary, minor=minor,
File "/home/user/src/pywikibot/pywikibot/site/_decorators.py", line 92, in callee
return fn(self, *args, **kwargs)
File "/home/user/src/pywikibot/pywikibot/site/_apisite.py", line 1608, in editpage
token = self.tokens['edit']
File "/home/user/src/pywikibot/pywikibot/site/_tokenwallet.py", line 58, in __getitem__
key = self.site.validate_tokens([key])[0]
File "/home/user/src/pywikibot/pywikibot/site/_apisite.py", line 1307, in validate_tokens
types_wiki_old = self._paraminfo.parameter('query+info',
TypeError: 'NoneType' object is not subscriptable
CRITICAL: Exiting due to uncaught exception <class 'TypeError'>
```
This is after clearing the `~/.pywikibot/apcache-py3` cache, before that, it was
```
File "/home/john/src/pywikibot/pywikibot/data/api.py", line 572, in parameter
raise ValueError("paraminfo for '{}' not loaded".format(module))
ValueError: paraminfo for 'tokens' not loaded
CRITICAL: Exiting due to uncaught exception <class 'ValueError'>
```
**Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc**:
* Pywikibot 6.6.0, locally and on PAWS
* Site: enwikisource, wikidata (both group1)
Not on Commons or enwiki (group0) so it could be MW .23 deployment issue.
* enwikisource: https://en.wikisource.org/w/api.php?action=paraminfo&format=json&modules=query%2Binfo
* enwiki: https://en.wikipedia.org/w/api.php?action=paraminfo&format=json&modules=query%2Binfo
enwiki has the following, enwikisource does not:
```
{
"index": 5,
"name": "token",
"type": [
"block",
"delete",
"edit",
"email",
"import",
"move",
"protect",
"unblock",
"watch"
],
"deprecated": "",
"multi": "",
"lowlimit": 50,
"highlimit": 500,
"limit": 50
},
```