Missing doubleclick options / annoying overlay

hi,

i’ve bought CM Tooltip Glossary Pro+ yesterday. When it’s activated and i doubleclick inside a post, an almost empty black overlay box appears, only displaying “0”. I assume it’s about the doubleclick feature which is shown here, the thing is i can’t find this option in my backend altough it should be included in my version.
where to look/what to do to switch it off? thanks,

bye
johanens

https://ww.wp.xz.cn/plugins/enhanced-tooltipglossary/