Still struggling with my shop transfer and now I think I have found the problem.
The below is from an event log for today. The path to the files is from the OLD shop, not the NEW. Where do I define this? its probably done automatic when you install a shop and now get wrong.
*ERROR* 2019/04/27 - 14:23:09: load error: failed to find /var/www/vhosts/jv74.se/httpdocs/modules/footercustom/views/css/front/less/default.less at line 1417 in file modules/footercustom/lessc.inc.php