Fields have disappeared for 2 bugs

Fields have disappeared for 2 bugs

For 2 specific bugs, within the bug screen the fields on the right hand side (status, classification etc.,) have disappeared.  The comments field is still present, and I am able to change the title.  There isnt any specific setting that they both share i.e. one is open, one is set to "waiting on client".  This appeared to happen after I deleted some values within the "reproducable" field, however many other bugs share the same reproducable field values and they are ok.  Does anyone have any ideas since this is causing a significant problem for my client and team.

I also get a "Sorry, currently the server is unable to process your request" for both of these bugs, I left it a day however and the same message appears.  Have they got corrupt somehow, if so, can we recover?

Thanks in advnance,

Jo Savidge