No uploading pictures

ive found that i cant upload an image in conjunction with a post, the image just is not displaying. i have checked my upload limit, its not even 1% so im all fine on that level, and having looked through other posts on different topics, other people are having the same problem, could you fix it? Thanks

its the new version of php that is causing the problem

please refer to:

https://www.electro-tech-online.com/threads/model-boat-speed-controllers.15003/