# Problems with Tally after installing Biz Analyst

- [Tally is getting Slow](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/tally-not-responding.md): Tally usually does not respond when multiple instances are open in the same computer.
- [Tally crashes with MAV(Memory Access Violation)error](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/mav-memory-access-violation.md): Tally.ERP 9 crashes if the data created in any of 4.7 till 4.93 releases and migrated to 5.0 till 5.3 releases.
- [Tally crashes with Out of Memory error](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/out-of-memory.md): This error message may appear when the the main memory (RAM) of the computer is full, and there is no space to execute further memory access requests.
- ["Files Damaged" error in tally and Unable to sync data with Biz Analyst app](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/data-files-damaged-in-tally-and-data-is-not-syncing-in-mobile-application..md)
- [Cannot Find Credit Days in App](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/user-is-not-getting-credit-days-in-app.md)
- [Tally crashes when I open Group Company](https://help.bizanalyst.in/biz-analyst-manual/support/problems-with-tally-after-installing-biz-analyst/group-company-mav-error.md)


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