There are some network errors in the logs, but they appear to be intermittent, and they donāt affect all requests to AnkiHub, so this is probably not a proxy issue.
Regarding failed suggestions, the log show you tried to submit a suggestion (note id: 1554771109803) where you didnāt make any changes to the fields with the comment āPlease fix grammar issues with this cardā. In case there is confusion about this, AnkiHub expects you to make your suggested changes to the relevant fields, then click the suggestion button. Maintainers then can review your changes and decide whether to include them in the deck or not. If you just want to raise an issue about some notes without making the change yourself, feel free to create a post here in the community instead of submitting a suggestion via the add-on or the website.