Erroor – Not a function

I am using V4.4.2. I receive the following when trying to access any of the templates:

TypeError: a.filter is not a function

at https://actrvra.org.au/wp-content/plugins/yaymail/assets/dist/yaymail/yaymail-main.tsx-60ea0a5f.js?ver=4.4.2:3:201009 

at Object.useMemo (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:239:487) 

at c.useMemo (https://actrvra.org.au/wp-includes/js/dist/vendor/react.min.js?ver=18.3.1.1:29:377) 

at $V (https://actrvra.org.au/wp-content/plugins/yaymail/assets/dist/yaymail/yaymail-main.tsx-60ea0a5f.js?ver=4.4.2:3:200968) 

at mf (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:105:412) 

at Qk (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:250:214) 

at Ri (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:195:185) 

at Ok (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:195:116) 

at Nd (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:194:492) 

at Qf (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:187:439) 

at Li (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:189:234) 

at db (https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:79:182) 

at https://actrvra.org.au/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1:184:289`

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