images not displaying

[maidos]

i go to User Albums -- > Album Picture Storage Type

Move pictures within the file system

and i made sure to chmode 777

Full Picture File Path
/home/admin/domains/site.net/public_html/forum/images/thumbnail

Thumbnail File Path
/home/admin/domains/site.net/public_html/forum/images/thumbnail

URL to Thumbnails
/forum/images/thumbnail

however mmost of the picture doesnt display on the forum

but only few picture shows up but most of them dont
i got these add on

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