Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/Sonarr/src/commit/9b5bf374a66597b7df4cf8e8cb09e39e6d702be3/tools You should set ROOT_URL correctly, otherwise the web may not work correctly.
Sonarr/tools
Mark McDowall 92f9093138 Create .mdb files for mono releases 11 years ago
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pdb2mdb Create .mdb files for mono releases 11 years ago