diff -r c0d243b27e64 -r fa99279f9d40 mod_invites_adhoc/mod_invites_adhoc.lua
--- a/mod_invites_adhoc/mod_invites_adhoc.lua	Tue Sep 13 20:32:20 2022 +0100
+++ b/mod_invites_adhoc/mod_invites_adhoc.lua	Wed Sep 14 17:21:42 2022 +0200
@@ -14,8 +14,8 @@
 local allow_contact_invites = module:get_option_boolean("allow_contact_invites", true);
 
 -- These options are deprecated since module:may()
-local allow_user_invite_roles = module:get_option_set("allow_user_invites_by_roles");
-local deny_user_invite_roles = module:get_option_set("deny_user_invites_by_roles");
+local allow_user_invite_roles = module:get_option_set("allow_user_invites_by_roles", {});
+local deny_user_invite_roles = module:get_option_set("deny_user_invites_by_roles", {});
 
 if module.may then
 	if allow_user_invites then