Gallery shortcode leads to error message

We added 2 wysiwyg fields to Pages, and put WordPress gallery shortcodes in there ‘[gallery link="file" columns="1" orderby="title"]‘. When viewing the page we get the following message

‘Notice: Array to string conversion in /media/sites/www.peoplesplace.dev/wp-content/plugins/custom-content-type-manager/includes/functions.php on line 416 Array’

We did not experience this issue on previous versions. Please advise, thanks.

https://www.ads-software.com/plugins/custom-content-type-manager/