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-rw-r--r--includes/view/Shifts_view.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/includes/view/Shifts_view.php b/includes/view/Shifts_view.php
index 0c15b159..133ceb06 100644
--- a/includes/view/Shifts_view.php
+++ b/includes/view/Shifts_view.php
@@ -80,7 +80,7 @@ function Shift_signup_button_render($shift, $angeltype, $user_angeltype = null)
$user_angeltype = UserAngelType_by_User_and_AngelType(auth()->user()->id, $angeltype);
}
- if ($angeltype['shift_signup_state']->isSignupAllowed()) {
+ if (isset($angeltype['shift_signup_state']) && $angeltype['shift_signup_state']->isSignupAllowed()) {
return button(shift_entry_create_link($shift, $angeltype), __('Sign up'));
} elseif (empty($user_angeltype)) {
return button(