Failed support bundle generation

Dears ,, 

I have an issue generating a support bundle for our SPP (6.8). I have generated one week ago a support bundle and after one hour it showed me a time out error, and since then whenever I try to generate a support bundle it shows the below error:

”A support bundle is currently being generated by “my user”. Please wait until that Support Bundle is completed, then try again. If you submitted a request to generate a support bundle and then canceled it, you will still have to wait for the cancel process to complete. (60779)” 

I have been waiting for more than a week and still I cannot generate the support bundle. 

Anyone have encountered this error? 

Regards

Anas