# problem that im facing

**URL:** <https://forums.ankiweb.net/t/problem-that-im-facing/34108>\
**Category:** Syncing & AnkiWeb\
**Created:** [September 9, 2023, 11:11pm UTC](https://forums.ankiweb.net/t/problem-that-im-facing/34108 "2023-09-09T23:11:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![daimather](https://avatars.discourse-cdn.com/v4/letter/d/85f322/32.png) [@daimather](https://forums.ankiweb.net/u/daimather)\
**Post date:** [September 9, 2023, 11:11pm UTC](https://forums.ankiweb.net/t/problem-that-im-facing/34108/1 "2023-09-09T23:11:52Z")

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Error  
An error occurred. Please use Tools \> Check Database to see if that fixes the problem.  
If problems persist, please report the problem on our support site. Please copy and paste the information below into your report.  
Anki 2.1.54 (b6a7760c) Python 3.9.7 Qt 5.15.2 PyQt 5.15.5  
Platform: Windows 10  
Flags: frz=True ao=False sv=2  
Add-ons, last update check: 2023-09-03 23:21:34

Caught exception:  
Traceback (most recent call last):  
File “aqt.taskman”, line 122, in \_on\_closures\_pending  
File “aqt.taskman”, line 71, in   
File “aqt.taskman”, line 90, in wrapped\_done  
File “aqt.dbcheck”, line 41, in on\_future\_done  
File “concurrent.futures.\_base”, line 438, in result  
File “concurrent.futures.\_base”, line 390, in \_\_get\_result  
File “concurrent.futures.thread”, line 52, in run  
File “aqt.dbcheck”, line 36, in do\_check  
File “aqt.main”, line 1385, in create\_backup\_now  
File “anki.collection”, line 371, in create\_backup  
File “anki.\_backend.generated”, line 1789, in create\_backup  
File “anki.\_backend”, line 146, in \_run\_command  
anki.errors.BackendIOError: IoError(“Os { code: 23, kind: Uncategorized, message: "Data error (cyclic redundancy check)." }”)

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<div class="post-metadata">

**Author:** ![dae](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/dae/32/65_2.png) [@dae](https://forums.ankiweb.net/u/dae)\
**Post date:** [September 10, 2023, 4:39am UTC](https://forums.ankiweb.net/t/problem-that-im-facing/34108/2 "2023-09-10T04:39:41Z")

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This looks like a problem with your computer - after backing up your files, running chkdsk may help. [https://www.youtube.com/watch?v=nkhn6ZJaby0](https://www.youtube.com/watch?v=nkhn6ZJaby0)

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\
**Post date:** [October 10, 2023, 4:39am UTC](https://forums.ankiweb.net/t/problem-that-im-facing/34108/3 "2023-10-10T04:39:52Z")

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Closed on October 10, 2023, 4:39am UTC

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