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Cannot open any folders within thunderbird or send unsent messages after computer (ubuntu) closed suddenly whilst using programme

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I use ubuntu. The computer ran out of battery power and closed whilst I was using thunderbird. On restarting thunderbird later, I found that I could not open any folders or send any unsent messages. When I close the programme, I cannot restart it because it says thunderbird is already open, but if I use killall -9 thunderbird I am told there are no thunderbird processes running. I've checked my profile and there is no lock file or parentlock file. Someone suggest deleting the global messages database, but this hasn't helped at all. If I am slow responding to any questions, please be patient, tonight is my last night with a decentinternet connection - before returning to my rural African home, where we get download speeds of 15kb/s on a good day. Thanks, Karen

I use ubuntu. The computer ran out of battery power and closed whilst I was using thunderbird. On restarting thunderbird later, I found that I could not open any folders or send any unsent messages. When I close the programme, I cannot restart it because it says thunderbird is already open, but if I use killall -9 thunderbird I am told there are no thunderbird processes running. I've checked my profile and there is no lock file or parentlock file. Someone suggest deleting the global messages database, but this hasn't helped at all. If I am slow responding to any questions, please be patient, tonight is my last night with a decentinternet connection - before returning to my rural African home, where we get download speeds of 15kb/s on a good day. Thanks, Karen

Chosen solution

Do you run some sort of anti-virus software on the Ubuntu computer?

Do you have a backup of your profile folder? If not, now is a good time to create one. https://support.mozilla.org/en-US/kb/profiles-tb#w_backing-up-a-profile

There might be some sort of corruption in connection with your Inbox folder. Try to rebuild the index file within Thunderbird: Right click on Inbox in Thunderbird, select Properties, and then press the Rebuild Index button.

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If I restart the computer there is no problem opening thunderbird, but I still can't use the programme. It will try to download messages, but then gives me the following error messages. The second one came when I said no don't skip the message. There is 1.5Gb free on the disc partition that contains my thunderbird profile.

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Chosen Solution

Do you run some sort of anti-virus software on the Ubuntu computer?

Do you have a backup of your profile folder? If not, now is a good time to create one. https://support.mozilla.org/en-US/kb/profiles-tb#w_backing-up-a-profile

There might be some sort of corruption in connection with your Inbox folder. Try to rebuild the index file within Thunderbird: Right click on Inbox in Thunderbird, select Properties, and then press the Rebuild Index button.

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Thanks. The problem must be with all the folders not just the inbox. Bit I do have a back up that's not too old, so I've restored function by using that.

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Thanks. The problem is more global than just the inbox, and rebuilding the index didn't help. But I do have a backup that's not too old, so I've restored function from there.