Moderation issue

Moderation badge indicates the number(1790) of report from the thread that was deleted

When I click on it, it unloads and for moment its empty/no more items
after reloading the page,moderation badge(1790) indicates the same amount again

Moderation list has no itmes, but still there is a huge list

How to get rid of it

solved!
after rebuilding threads and posts, reports disappeared!