Title: Data not visible + Export CSV throwing error
Last modified: July 10, 2025

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# Data not visible + Export CSV throwing error

 *  [kalashagrahari](https://wordpress.org/support/users/kalashagrahari/)
 * (@kalashagrahari)
 * [11 months ago](https://wordpress.org/support/topic/data-not-visible-export-csv-throwing-error/)
 * Hi team,
 * We’ve noticed a critical issue:
    - For one specific form, the **entries are not visible** in the CFDB7 dashboard.
    - When we try to **Export CSV**, it throws the error **“There has been a critical
      error on this website. Please check your site admin email inbox for instructions.
      If you continue to have problems, please try the support forums.”**
    - Other forms work fine — their data is visible and exports correctly.
 * After investigation, we found that:
    - The issue is caused by a **corrupted serialized `form_value`** in the `db7_forms`
      table.
    - For example, we have the following values in table **s:8**:\”**eBookURL**\”;**
      s:152**:\”**[https://nftpreprod1.nfshtechglobal.com/?post_type=e-landing-page&p=11509&preview_id=11509&preview_nonce=46bf9a01d5&preview=true#downloadEbookForm](https://nftpreprod1.nfshtechglobal.com/?post_type=e-landing-page&p=11509&preview_id=11509&preview_nonce=46bf9a01d5&preview=true#downloadEbookForm)**\”
    - With value s:152 (it means the format is string with length is 152), value**
      [https://nftpreprod1.nfshtechglobal.com/?post_type=e-landing-page&p=11509&preview_id=11509&preview_nonce=46bf9a01d5&preview=true#downloadEbookForm](https://nftpreprod1.nfshtechglobal.com/?post_type=e-landing-page&p=11509&preview_id=11509&preview_nonce=46bf9a01d5&preview=true#downloadEbookForm)**
      with length is **160** => **Incorrect**
    - This broke `unserialize()` when the plugin tried to load or export the form
      entries.
 * We have manually updated the record for now, but we’re looking for guidance on:
    1. What is the root cause of this issue?
    2. **How to prevent this in the future?**
    3. Has this issue been addressed in newer versions. ?
    4. As single table handles all records, such case can disrupt random form view 
       and export functionality?
       **WordPress version: 6.8.1Plugin Version: 1.3.0PHP
       Version: 8.3.23Web Server: Apache (FPM/FastCGI)MySQL/MariaDB Version: 10.6.22-
       MariaDBDatabase Charset: `utf8mb4`Database Collation: `utf8mb4_unicode_520_ci`
 *  -  This topic was modified 11 months ago by [kalashagrahari](https://wordpress.org/support/users/kalashagrahari/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [kalashagrahari](https://wordpress.org/support/users/kalashagrahari/)
 * (@kalashagrahari)
 * [11 months ago](https://wordpress.org/support/topic/data-not-visible-export-csv-throwing-error/#post-18549050)
 * Also other forms didn’t got corrupted but only single form. How is this possible
   if all data are store in single table.
 * **Please explain.**
 *  [jamesashcroftGD](https://wordpress.org/support/users/jamesashcroftgd/)
 * (@jamesashcroftgd)
 * [10 months, 1 week ago](https://wordpress.org/support/topic/data-not-visible-export-csv-throwing-error/#post-18577487)
 * I have experienced same issues you’ve described above and would like to know 
   the cause and how to stop it happening again.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Data not visible + Export CSV throwing error’ is closed to new replies.

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## Tags

 * [CFDB7](https://wordpress.org/support/topic-tag/cfdb7/)
 * [critical issue](https://wordpress.org/support/topic-tag/critical-issue/)
 * [database issue](https://wordpress.org/support/topic-tag/database-issue/)

 * 2 replies
 * 2 participants
 * Last reply from: [jamesashcroftGD](https://wordpress.org/support/users/jamesashcroftgd/)
 * Last activity: [10 months, 1 week ago](https://wordpress.org/support/topic/data-not-visible-export-csv-throwing-error/#post-18577487)
 * Status: not resolved