Server error after creating new app

Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 39, in render
data = render_page_by_language(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 133, in render_page_by_language
return render_page(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 149, in render_page
return build(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 156, in build
return build_page(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/render.py”, line 169, in build_page
context = get_context(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/context.py”, line 15, in get_context
context = get_page_context(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 35, in get_page_context
page_context = make_page_context(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 43, in make_page_context
context = resolve_route(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 21, in resolve_route
return get_page_context_from_doctype(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 75, in get_page_context_from_doctype
page_info = get_page_info_from_doctypes(path)
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 94, in get_page_info_from_doctypes
for doctype in get_doctypes_with_web_view():
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 314, in get_doctypes_with_web_view
return frappe.cache().get_value(‘doctypes_with_web_view’, _get)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/redis_wrapper.py”, line 72, in get_value
val = generator()
File “/home/frappe/frappe-bench/apps/frappe/frappe/website/router.py”, line 311, in _get
dict(has_web_view=1)) if frappe.local.module_app[frappe.scrub(d.module)] in installed_apps]
KeyError: u’non_profit’

It solved. After I reinstalling my erpnext app