Pro version – Fatal error on db backup

Installed the Pro version I just bought. Started with a backup. Got the following error:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 3601158 bytes) in /home/kauaifil/public_html/wp-content/plugins/better-search-replace-pro/includes/class-better-search-replace-db.php on line 340

https://wordpress.org/plugins/better-search-replace/