Topic: strange lines

hello the last few weeks I suffer from weird streaks in my photos after uploading. Is there someone who has this problem or knows the solution.
example: http://www.j-scheffers.nl/Fotopic/Foto's%202017/Doro-14-11-17/index.html#/view/ID49960

Post's attachments

Knipsel.PNG
Knipsel.PNG 738.19 kb, file has never been downloaded. 

You don't have the permssions to download the attachments of this post.

Re: strange lines

This looks very much like a corrupt image (which has most likely happened during upload to your web server).
Try reuploading your images and clear your browser's cache before rechecking your gallery's web page.
If this does not help, then I would recommend trying a different FTP program to upload your images.
I personally use Filezilla (for Mac or PC). Its free and I've been using it for years without issue.
If you are a Windows user, then another free FTP program to try is WinSCP.
Hopefully changing your FTP program will help.