# Sync feature not working!

**URL:** https://forums.ankiweb.net/t/sync-feature-not-working/2518
**Category:** Help
**Created:** [August 21, 2020, 1:21am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518 "2020-08-21T01:21:45Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![wowstevo](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@wowstevo](https://forums.ankiweb.net/u/wowstevo)
#### Post date: [August 21, 2020, 1:21am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/1 "2020-08-21T01:21:45Z")

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Hey everyone,

I’ve used Anki on Mac for a while without any problems whatsoever, but today it began showing an error message every time I try to sync or quit the application. It says:

DBError { info: “InvalidColumnType(5, “lastIvl”, Real)”, kind: Other }

I’ve tried disabling all add-ons and restarting the app but it still occurs!

Has anyone else experienced anything similar? I would appreciate any help!

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### 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: [August 21, 2020, 1:41am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/2 "2020-08-21T01:41:08Z")

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Tried Tools\>Check Database?

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### Author: ![wowstevo](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@wowstevo](https://forums.ankiweb.net/u/wowstevo)
#### Post date: [August 21, 2020, 2:55am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/3 "2020-08-21T02:55:45Z")

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Found ⁨205⁩ new cards with a due number \>= 1,000,000 - consider repositioning them in the Browse screen.

Fixed ⁨39⁩ invalid card properties.

Deleted ⁨1⁩ card with duplicate template.

Fixed ⁨48⁩ review entries with invalid properties.

Database rebuilt and optimized.

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### 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: [August 21, 2020, 3:47am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/4 "2020-08-21T03:47:20Z")

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Are you still having trouble syncing?

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### Author: ![wowstevo](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@wowstevo](https://forums.ankiweb.net/u/wowstevo)
#### Post date: [August 21, 2020, 6:16am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/5 "2020-08-21T06:16:18Z")

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I think it’s fixed now! I just uploaded my data to anki web to overwrite what was there before.

Thank you!

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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: [May 1, 2023, 5:35am UTC](https://forums.ankiweb.net/t/sync-feature-not-working/2518/6 "2023-05-01T05:35:08Z")

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