"Internal Server Error" submitting ETH TX hash

[RogueKitsune]

Saw the updated news about the support page and claiming crypto donations and figured I would try it out. Because I am using Coinbase I would need to claim donations using the transaction hashes. In early April I had made a donation in Bitcoin, so I entered the transaction hash from that and everything worked as expected. Next I made a donation in ETH using Coinbase. Here I expected not to find a match using the transaction hash because I had just made the donation. Instead what I got was a forever spinning "Claiming..." and a failed request in the network logs.

Request Details

POST /ajax/actions.ajax.php?function=claim_transaction HTTP/1.1
Host: mangadex.org
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
cache-control: no-cache
X-Requested-With: XMLHttpRequest
Content-Type: multipart/form-data; boundary=---------------------------7456413982401542084520466168
Content-Length: 240
Origin: https://mangadex.org
DNT: 1
Connection: keep-alive
Referer: https://mangadex.org/support
Cookie: <REDACTED>
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
Pragma: no-cache

-----------------------------7456413982401542084520466168
Content-Disposition: form-data; name="id_string"

0x<REDACTED>845
-----------------------------7456413982401542084520466168--

Response Details

HTTP/2 500 Internal Server Error
server: ddos-guard
content-security-policy: upgrade-insecure-requests;
date: Sun, 03 May 2020 18:30:36 GMT
content-type: text/html; charset=UTF-8
set-cookie: <REDACTED>
X-Firefox-Spdy: h2