# Internal Server Error \[Merge\] **URL:** \ **Category:** Technical Support\ **Created:** [July 18, 2023, 2:26pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720 "2023-07-18T14:26:34Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![elvisdosreis](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/elvisdosreis/32/311_2.png) [@elvisdosreis](https://pdfjs.community/u/elvisdosreis)\ **Post date:** [July 18, 2023, 2:26pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/1 "2023-07-18T14:26:34Z")
The server started showing an error to merge documents, I need a quick solution, there are some posts on the forum with the same error, with more than 8 hours ---
**Author:** ![greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@greg](https://pdfjs.community/u/greg)\ **Post date:** [July 18, 2023, 2:29pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/2 "2023-07-18T14:29:04Z")
i am also gettting same error ---
**Author:** ![greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@greg](https://pdfjs.community/u/greg)\ **Post date:** [July 18, 2023, 2:31pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/3 "2023-07-18T14:31:53Z")
also getting this Access to fetch at ‘[https://api.pdfjs.express/xfdf/merge](https://api.pdfjs.express/xfdf/merge)’ from origin 'domain has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled. also Request URL: [https://api.pdfjs.express/xfdf/merge](https://api.pdfjs.express/xfdf/merge) Request Method: POST Status Code: 502 Remote Address: 18.210.82.25:443 Referrer Policy: strict-origin-when-cross-origin ---
**Author:** ![greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@greg](https://pdfjs.community/u/greg)\ **Post date:** [July 18, 2023, 2:33pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/4 "2023-07-18T14:33:29Z")
> [@elvisdosreis](#): > > The server started showing an error to merge documents, I need a quick solution, there are some posts on the forum with the same error, with more than 8 hours we are also stucked on this. waiting to resolve from pdfexpress ---
**Author:** ![elvisdosreis](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/elvisdosreis/32/311_2.png) [@elvisdosreis](https://pdfjs.community/u/elvisdosreis)\ **Post date:** [July 18, 2023, 2:39pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/5 "2023-07-18T14:39:56Z")
the request was not made by the browser, it was via the PHP api using the License Key Server that way there would be no cors problems ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/c/c0c1d913579835372b970ec77facecba477c6a3a.png) ---
**Author:** ![greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@greg](https://pdfjs.community/u/greg)\ **Post date:** [July 18, 2023, 3:04pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/6 "2023-07-18T15:04:12Z")
yes i get it, but it was working from very long time now. it stopped working last day ---
**Author:** ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)\ **Post date:** [July 18, 2023, 3:26pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/7 "2023-07-18T15:26:18Z")
Hello, We have diagnosed the source of the issue and it has been resolved. Feel free to reach out to me if the issue persists. Thank you, Tyler ---
**Author:** ![ekaleida](https://avatars.discourse-cdn.com/v4/letter/e/e47c2d/32.png) [@ekaleida](https://pdfjs.community/u/ekaleida)\ **Post date:** [July 18, 2023, 7:03pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/8 "2023-07-18T19:03:49Z")
We would like to investigate an alternative to the API merge, why I think this post is important: [Merge XFDF signature with iText](https://pdfjs.community/t/merge-xfdf-signature-with-itext/2674/10) ---
**Author:** ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)\ **Post date:** [July 18, 2023, 8:57pm UTC](https://pdfjs.community/t/internal-server-error-merge/2720/9 "2023-07-18T20:57:43Z")
Hello ekaleida, Unfortunately, we do not offer alternative XFDF merging to the API. Best regards, Tyler