Well I see that after each update there are some files gone missing from your theme folder , its like some files are not copied properly when you update .
I guess it some kinda file permissions error. At some point the php code is not able to copy the file into wp-content/themes/wplms folder .
So please check your folder permissions must be 755 and file permissions must be 644 .
Another way to avoid missing files is to follow manual update :
https://wplms.io/support/knowledge-base/manually-updating-wplms/
Or after an auto update you match the files from theme package you can download from your envato account -> downloads section with your website's wp-content/themes/wplms folder .