Troubleshooting
What the app's messages mean and how to fix them, grouped by task.
Find the message you see, then open it for the cause and the fix. Messages in the app's own wording are quoted exactly.
Connecting and signing in
Wallet connection timed out
Why: Your wallet app did not respond.
Unlock your wallet and try again; for WalletConnect, scan a new QR code.
Looks like youre connected to an unsupported network. Please switch to a supported network.
Why: Your wallet is not on Arc Testnet.
Press the switch button in the dialog, or switch networks in your wallet. When placing an order you may see Wrong network: press Switch to Arc Testnet. See Network.
Signature request cancelled. Please try again.
Why: The sign-in signature was rejected.
Try again and approve the signature. It is free and is not a transaction.
Signing already in progress. Please confirm or reject the open wallet request.
Why: Another signature request is still open in your wallet.
Approve or reject it in your wallet, then retry.
Unable to register signing key. Please try again.
Why: The API could not register your signing key.
Wait a moment and try again; reload the page if it continues.
Your wallet did not authorise this account for signing. Check that the account you want to trade from is the one currently selected in your wallet and connected to this site, then try connecting again.
Why: The account selected in your wallet is not the one connected to this site.
Select the connected account in your wallet, make sure it is connected to this site, then try again.
No wallet is connected. Connect a wallet and try again.
Why: No wallet is connected in this tab.
Press Connect Wallet and connect. See Connect a wallet.
Access Denied
Why: You are connecting from a restricted country or territory.
The app can't be used from your location. See the Terms of Service.
Access Restriction
Why: A one-time confirmation that you are not a resident of a restricted country and are not using a VPN to get around this.
If that is true, press Continue. Otherwise you may not use the app.
Enter Trading Password
Why: This browser stores encrypted credentials for this account.
Enter the password, or choose Remove Account. That removes only the local copy; your funds and positions are unaffected. Then sign in again.
Funds
I didn't receive test funds
Why: You were not eligible: balance above the threshold, recent top-up, IP limit reached, or faucet off.
See Get testnet funds.
Transaction cancelled in your wallet. Update the amount or try again.
Why: You rejected a wallet transaction during the deposit.
Start the deposit again and confirm both the approval and the deposit.
Deposit failed. Please check your wallet and try again.
Why: The deposit transaction failed or reverted on-chain.
Open the transaction in the block explorer to see why, then try again.
Not enough USDC to cover the network fee. Add USDC to your wallet, then try again.
Why: Your wallet can't pay the network fee.
Get USDC (see Get testnet funds) and try again.
I can withdraw less than my balance
Why: Part of your balance is margin for open positions or orders.
Close positions or cancel orders to free it. See Withdraw.
Trading
Insufficient buying power
Why: Not enough available balance for this size at this leverage, including fees.
Reduce the size, raise leverage, or deposit more.
Insufficient market liquidity
Why: The order is bigger than all the resting orders on the other side of the book.
Use a smaller size, or place a limit order instead.
Order Failed
Why: The order was rejected; the toast shows the reason.
Fix the input the message names and try again.
Min order size is …
Why: The order is smaller than the market's minimum size.
Increase the size.
Deselect Reduce Only: You cannot create a … order because … and Reduce Only selected. To create a new order you must deselect "Reduce Only".
Why: Reduce Only is ticked, but this order would open or add to a position rather than shrink one.
Untick Reduce Only, or change the side so the order reduces your position.
Order submitted with invalid signing key. Please sign in again.
Why: Your browser's signing key is no longer accepted.
Sign in again.
Your wallet is out of sync with Arc Testnet, so your order was not placed. Nothing was submitted and no funds moved.
Why: Your wallet's transaction count is behind the network.
Nothing was sent. In your wallet, switch to another network and back, then retry; if it continues, clear the wallet's activity data (reset account).
Greyed-out TP/SL checkbox: Not available on this network yet
Why: Take profit / stop loss isn't set up on this network, or the TP/SL service reported that it is unavailable.
Manage exits with limit orders. See Take profit and stop loss.
TP/SL failed or not set
You cannot reduce leverage because you have an open …-USD position
Why: Leverage can't be lowered while you have an open position in that market.
Close the position first. You can still raise leverage while it is open.
No trades yet
Why: The market has no trades yet, so there are no candles to draw.
Nothing is wrong: candles appear after the first fill.
Positions and data
Couldn't load your positions.
Why: The app could not reach the server.
Press Retry. Your positions are on-chain and are not affected by a display error.
Couldn't reach the server — data may be out of date. / Couldn't confirm your last trade here — data may be out of date.
Why: The app lost contact with the server, or could not confirm your last trade.
Press Retry, or reload the page.
Insufficient market liquidity to close position. Please try requesting for a quotation or close your position using a limit order.
Why: There is no liquidity on the other side of the book.
Close with a limit order instead. (Quotations are not offered.)
Still stuck?
- Reload the page. Your funds, orders and positions are on-chain, so reloading never loses them.
- Try another browser, where you will need to sign in again.
- Ask in the community channels linked in the footer. Never share your wallet's seed phrase or your API secret; see Security.