# Another panel error question after migration

**URL:** <https://forum.getkirby.com/t/another-panel-error-question-after-migration/10438>\
**Category:** Questions\
**Tags:** v2\
**Created:** [May 17, 2018, 1:23pm UTC](https://forum.getkirby.com/t/another-panel-error-question-after-migration/10438 "2018-05-17T13:23:19Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![teh](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.getkirby.com/teh/32/9669_2.png) [@teh](https://forum.getkirby.com/u/teh)\
**Post date:** [May 17, 2018, 1:23pm UTC](https://forum.getkirby.com/t/another-panel-error-question-after-migration/10438/1 "2018-05-17T13:23:19Z")

</div>

Hi!

After migrating a whole page from a dev-server to another server by copy-pasting all of the folders and files, the panel login-page is telling me: `"The field class is missing for: blog.phpfield"`.

Notes:  
**–** the front-end works  
**–** the panel url is accessible

Because the server is pretty slow and its timeout short, my guess is that not all files have been copied successfully.  
I also tried:  
**–** re-uploading the folders and files  
**–** un-commented the RewriteBase to “/”  
**–** checked the permissions of the folders and files  
**–** set: c::set(‘url’ etc.  
**–** using two different FTP applications

Does anybody know to what specific folder or file the error line is referring?

Notes:  
**–** the “fields” and “plugins” folders and the blog-files within those two folders, have been copied correctly  
**–** the PHP-version on the dev-server was PHP 5.6 but the PHP-version on the live-server is 7.1  
**–** the folders and files have been transferred via FTP not SFTP (no SFTP is available)

Thanks!

 ![04](https://europe1.discourse-cdn.com/flex017/uploads/getkirby/original/2X/9/9da1e389a8a99954b6880bfccd462385b82bd9b6.png)

---

<div class="post-metadata">

**Author:** ![teh](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.getkirby.com/teh/32/9669_2.png) [@teh](https://forum.getkirby.com/u/teh)\
**Post date:** [May 17, 2018, 2:08pm UTC](https://forum.getkirby.com/t/another-panel-error-question-after-migration/10438/2 "2018-05-17T14:08:03Z")

</div>

wtf, I deleted the file `blog.php` from the `fields` folder on the live-server. I don’t know what the file was doing there. (It’s a Kirby-template.) Still don’t know why it’s working on the dev-server though – anyways it’s working now.

---

<div class="post-metadata">

**Author:** ![distantnative](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.getkirby.com/distantnative/32/11319_2.png) [@distantnative](https://forum.getkirby.com/u/distantnative)\
**Post date:** [February 6, 2025, 5:28pm UTC](https://forum.getkirby.com/t/another-panel-error-question-after-migration/10438/3 "2025-02-06T17:28:15Z")

</div>