As part of the fusion between fSDL and RWS, legacy domains like sdl.com and sdlbeglobal.com will be discontinued starting from the 23rd of February 2023.
This affects also the API integration between Language Weaver and Trados GroupShare.

This will be officially addressed in the next cumulative update (CU9) for Trados GroupShare 2020.

Until then, there is a workaround that requires minimum intervention on the GroupShare application server:

1. On the GS Application server, go to C:\Program Files (x86)\SDL\SDL Server\Application
2. Open the file named Sdl.GroupShare.TranslationProviders.MTCloud.Client.dll.config in a file editor (preferably Notepad++) and replace the legacy URL (https://translate-api.sdlbeglobal.com) with the new URL (https://api.languageweaver.com) like below

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="MTCloudTranslateAPIUri" value="https://api.languageweaver.com" />
  </appSettings>
</configuration>

3. Save the file and close it.
4. Restart the SDL Execution Service (Option B from HERE)

RWS discontinues legacy domains like sdl.com and sdlbeglobal.com starting on the 23rd of February 2023.

CRQ-32486 - Trados GroupShare: Retiring legacy Language Weaver URLs on February 23rd 2023
https://kb.blackbaud.com/knowledgebase/Knowledge/49839