There might be some problem with some external plugin that is blocking the images. Please try disabling some external plugins, especially if you have some Optimizer, Cache, or Manage Images plugins, and check again.
Try also, with these plugins disabled, to upload the images again.
In case the problem still exists, please contact us by using our official website so our technicians can have a deeper look at it.
I hope this helps,
These pictures are not in the plugin itself at /site/resources/uploads/ if you download it
If that’s the case, then we suggest deleting all the extra photos for your room and re-upload them again. This will ensure a proper generation of the thumbnails as well as for the main image.
If the “404 not found” error was confirmed by the fact the files are truly missing on the server, then the only solution is to edit that room from the wp-admin section of VikBooking to delete all the extra photos and to re-upload them properly.
They are not in the plugin archive if you download them now at