Errors & states

Lookup & data errors

The read-only tools never sign anything, so their errors are about addresses, clusters and RPC limits.

“Not found”

Invalid address	The string isn't a valid Solana public key — usually a copy/paste that clipped a character or included whitespace.
Account not found / empty / never used	The key is valid but has no account on this cluster. It may be a brand-new wallet, or you're on the wrong network.
Signature not found	The transaction was on another cluster, was dropped and never confirmed, or has aged out of this RPC's history (nodes keep a limited window).
Not a token mint	You gave a wallet or token-account address where a mint address was expected.
No metadata	The mint has no on-chain name/symbol/logo. It'll show only the mint address — this is normal for many tokens.

Nine times out of ten, a 'not found' is the wrong network. Check the Devnet / Mainnet toggle in the top bar before anything else.

Rate limited (429)	The public RPC is throttling requests. Wait a minute and retry; avoid running several heavy tools at once.
Request timed out	A query over a large token (many holders / accounts) exceeded the RPC's time budget. Retry, or narrow the query.
Snapshot too large	Tokens with hundreds of thousands of holders may not complete in a browser. Holder Snapshot works best for community-sized tokens and NFT collections.
Stale results	A snapshot is a single moment. Holders who move tokens after you run it are not re-checked — re-run for a fresh view.

Row skipped / flagged	The line didn't parse as `address, amount`. Check the delimiter (comma or space), and that the amount is a plain number.
Invalid address in list	One row's address isn't a valid key. The row is flagged; fix or remove it — the rest still send.
Duplicate address	The same recipient appears twice. Both transfers will run unless you dedupe first.
Amount has too many decimals	More decimal places than the token supports. Trim to the token's decimals.

Upload failed / timed out	The Arweave gateway hiccuped. Retry — SOL for a failed upload is not spent.
Image too large	Keep logos under ~100 KB. Large files raise the storage cost and can time out.
Funding transaction failed	The small transfer that pays for storage didn't land. Re-run; make sure you have a little spare SOL.