# CSV file data readings are nul

**URL:** <https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393>\
**Category:** API\
**Created:** [November 30, 2023, 9:55pm UTC](https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393 "2023-11-30T21:55:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JGielen](https://avatars.discourse-cdn.com/v4/letter/j/74df32/32.png) [@JGielen](https://community.purpleair.com/u/JGielen)\
**Post date:** [November 30, 2023, 9:55pm UTC](https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393/1 "2023-11-30T21:55:53Z")

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Does anyone know how that happens?

| api\_version | time\_stamp | time\_stamp\_human | data\_time\_stamp | data\_time\_stamp\_human | last\_seen\_human | sensor\_index | last\_modified | date\_created |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| V1.0.11-0.0.49 | 1701212403 | 20231129-000003 | null | | | null | null | null |
| V1.0.11-0.0.49 | 1701212461 | 20231129-000101 | null | | | null | null | null |
| V1.0.11-0.0.49 | 1701212521 | 20231129-000201 | null | | | null | null | null |

| stats\_a-pm2.5\_6hour | stats\_a-pm2.5\_24hour | stats\_a-pm2.5\_1week |
| --- | --- | --- |
| null | null | null |
| null | null | null |

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<div class="post-metadata">

**Author:** ![Josh\_PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/josh_purpleair/32/2842_2.png) [@Josh\_PurpleAir](https://community.purpleair.com/u/Josh_PurpleAir)\
**Post date:** [December 5, 2023, 6:12pm UTC](https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393/2 "2023-12-05T18:12:45Z")

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Hi @JGielen, could you share the API calls you were making that resulted in this? Additionally, are time\_stamp and time\_stamp\_human taken from returned data, or are they recorded independently of data returned from the API?

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**Author:** ![JGielen](https://avatars.discourse-cdn.com/v4/letter/j/74df32/32.png) [@JGielen](https://community.purpleair.com/u/JGielen)\
**Post date:** [December 5, 2023, 9:53pm UTC](https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393/3 "2023-12-05T21:53:01Z")

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Hi Josh

This server job has worked fine for months. It creates a new CSV file every 24 hours. Since 14/11/2023 we only get zeros.

_image removed for privacy_

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<div class="post-metadata">

**Author:** ![Josh\_PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/josh_purpleair/32/2842_2.png) [@Josh\_PurpleAir](https://community.purpleair.com/u/Josh_PurpleAir)\
**Post date:** [December 5, 2023, 10:12pm UTC](https://community.purpleair.com/t/csv-file-data-readings-are-nul/7393/5 "2023-12-05T22:12:50Z")

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Hi @JGielen, we’ve removed your image for privacy. However, the response indicated a PaymentRequiredError. Upon examining your API account, it looks like you were recently moved to our points based billing system.

Please send an email to [contact@purpleair.com](mailto:contact@purpleair.com) and we can assist. Let us also know if any of the sensors you’re querying are purchased and we can provide points for data they’ve reported.