Missing small groups

[roed314]

On subgroup pages, there are cases where Magma was able to identify a group (so we have a small group id), but GAP doesn't know the ID. This causes an error:

Exception on /Groups/Abstract/sub/474552.a.108.b1.a1 [GET]
Traceback (most recent call last):
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/app.py", line 2525, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/app.py", line 1822, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/app.py", line 1820, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/app.py", line 1796, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/main.py", line 777, in by_subgroup_label
    return render_abstract_subgroup(label)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/main.py", line 1700, in render_abstract_subgroup
    return render_template(
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/templating.py", line 147, in render_template
    return _render(app, template, context)
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/flask/templating.py", line 130, in _render
    rv = template.render(context)
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/jinja2/environment.py", line 1301, in render
    self.environment.handle_exception()
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/templates/abstract-show-subgroup.html", line 1, in top-level template code
    {% extends "homepage.html" %}
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/templates/homepage.html", line 19, in top-level template code
    <div class="{{ [L,'nodisplay','code','codebox'] | join(' ')}}">{% for line in lines %}{% if lines | length == 1 %}{{prompt}}:&nbsp;{% endif %}{{line}}<br /><div style="margin: 0; padding: 0; height: 0;">&nbsp;</div>{# this div is a workaround for a copy-tex bug where if a code block followed a hidden code block followed by math was selected and copied the hidden block would be also it is important that it has display: block #}{% endfor %}</div>
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/templates/base.html", line 188, in top-level template code
    {% block body -%}{%- endblock body %}
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/templates/homepage.html", line 246, in block 'body'
    {% block content -%}
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/templates/abstract-show-subgroup.html", line 9, in block 'content'
    {% if seq.sub.sub_missing %}
  File "/home/sage/sage-9.7/local/var/lib/sage/venv-python3.10.5/lib/python3.10/site-packages/jinja2/environment.py", line 485, in getattr
    return getattr(obj, attribute)
  File "sage/misc/lazy_attribute.pyx", line 127, in sage.misc.lazy_attribute._lazy_attribute.__get__
    result = self.f(a)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/web_groups.py", line 3117, in sub
    setattr(self, prop, getattr(S, prop))
  File "sage/misc/lazy_attribute.pyx", line 127, in sage.misc.lazy_attribute._lazy_attribute.__get__
    result = self.f(a)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/web_groups.py", line 516, in pgroup
    if self.order == 1:
  File "sage/misc/lazy_attribute.pyx", line 127, in sage.misc.lazy_attribute._lazy_attribute.__get__
    result = self.f(a)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/web_groups.py", line 427, in order
    return ZZ(self.G.Order())
  File "sage/misc/lazy_attribute.pyx", line 127, in sage.misc.lazy_attribute._lazy_attribute.__get__
    result = self.f(a)
  File "/home/lmfdb/lmfdb-git-dev/lmfdb/groups/abstract/web_groups.py", line 369, in G
    return libgap.SmallGroup(n, i)
  File "sage/libs/gap/element.pyx", line 2523, in sage.libs.gap.element.GapElement_Function.__call__
    sig_on()
sage.libs.gap.util.GAPError: Error, the library of groups of size 4394 is not available
[2025-01-13 11:54:31 UTC] 500 error on URL https://cmfs.lmfdb.xyz/Groups/Abstract/sub/474552.a.108.b1.a1 ()