problems on website

Hello team

I have installed you plug in on different websites, but never had this issue.
This message comes when I want to go to settings.

I also have asked support from the Theme I use.
This is the message I get.

{{#if first_instance}} Amazon Web Services

<em>Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32768 bytes) in /var/www/web480/html/wp-heilpraktiker-schirnig/wp-content/plugins/updraftplus/includes/S3.php on line 636

Es gab einen kritischen Fehler auf deiner Website. Bitte überprüfe den Posteingang deiner Website-Administrator-E-Mail-Adresse für weitere Anweisungen.

Erfahre mehr über die Problembehandlung in WordPress.

The page I need help with: [log in to see the link]