An error occurred when QuickBooks tried to start the database server
I want to try open QuickBooks but I can’t open it.  The below error appears when I try to open it. Yesterday I entered some data in it and now I want to access that data but due to this problem I can’t access that data.
Please tell me the solution.
Warning
An error occurred when QuickBooks tried to start the database server that manages access to the QuickBooks company file.
If a firewall is installed on your network, you may need to reconfigure the firewall software to allow QuickBooks to communicate using TCP/IP. Click Help for information about changing your firewall settings.
If the problem persists, please contact Intuit Technical Support and provide them with the following error codes: (-6123, 0)
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Thanks in advance for providing help.