This looks like the same error as was reported here for Ceramic: (from Discord user: elcharitas) Please help, I am running a local ceramic node and I keep getting this error: - #16 by christina
Which we fixed in a hotfix with Fix Uint8Array inputs for concatenation calls (#3048) · ceramicnetwork/js-ceramic@2b75468 · GitHub.
Maybe there needs to be a similar update to the ceramic-eas code if it uses Uint8Array directly, or maybe it just needs to be updated to use the newest version of the Ceramic libraries.