Database disk image is malformed

[jeremygreene]

I have been using the software for months now. For the last few days when I try to load it. I get an error message Unable to connect to DB database image is malformed. Please advise

[NinjaTrader_Clayton]

Hello jeremygreene,

Thank you for the message.

Please use the following steps to rename the database file so NinjaTrader automatically creates a new one:

• Close NinjaTrader
• Go to Documents folder > NinjaTrader 8 > db > NinjaTrader.sqlite, right-click on this file and select 'Rename' and change the name to "NinjaTrader Old.sqlite" and then click off of it anywhere to save the name change
  • Please click here for a video demonstration of how to rename the Database file

Reopen NinjaTrader and test if the behavior continues.

If the behavior continues, please use the following steps to send your log and trace files to the support team directly from your NinjaTrader Platform so we may investigate this behavior further:

• Within NinjaTrader, go to the Control Center > Help > Email Support...
• To: Set this to "Platform Technical Support"
• Subject: Copy and paste the Forum URL
• Attach: Attach a file, picture, or compressed file to share multiple files/pictures
• Body: Include any other information you would like to share on the situation
• Make sure 'Log and Trace files' is checked to include the requested files
  • Send the email

Please let us know if we may provide any further assistance.

[NTAlgos]

I hit this before on a AWS virtual machine when I ran out of disk space. Increasing storage or clearing out files in Documents\NinjaTrader 8\db (But not NinjaTrader.sqlite), avoided this problem.