Sync, recover and debug any wallet in seconds.
Select from 100+ crypto issues below and let RPC Node guide users safely through wallet, transaction,
DeFi and contract problems with 24/7 support.
Wallet & access issues
Login, visibility, backups and security
👛
Assets not visible
Balance or tokens missing after sync or network change.
Wallet visibility
🔐
Login & recovery
Locked out, seed phrase issues, wrong address or 2FA problems.
Critical access
🚨
Phishing / compromised
Suspicious transfers, approvals, fake sites or scam tokens.
Security alert
📮
Wrong address / chain
Assets sent to wrong network or incompatible address type.
Irreversible risk
💾
Hardware wallet
Firmware, connection errors, or device not detected by dApps.
Ledger / Trezor
📝
Backup & seed phrase
Backup strategy, passphrase confusion, and recovery checks.
Best practice
👥
Multi-sig wallet
Signer issues, threshold problems, or transaction approvals.
Multi-signature
📥
Wallet import
Private key import failures or JSON file issues.
Migration
💔
Wallet corruption
Corrupted wallet files or database errors.
Data loss
🔑
Passphrase lost
Forgotten wallet passphrase or encryption key.
Access recovery
transactions & defi
Fees, swaps, bridges, lending and NFTs
⏳
Pending / stuck tx
Broadcast but not confirmed, stuck nonces or mempool issues.
Mempool
⛽
Gas & fees
Unexpected gas, underpriced or intrinsic gas errors.
Cost control
⇄
Swap / DEX issues
Slippage, price impact, reverts or front‑end quote mismatch.
DeFi routing
🌉
Bridge / cross‑chain
Bridged assets not arriving or stuck in transit queues.
Cross chain
📦
Airdrop & rewards
Unable to claim airdrop, wrong eligibility or snapshot.
Rewards
🏦
Lending & liquidation
Health factor, margin calls and liquidation‑risk checks.
Risk guard
🌊
Liquidity pools
Stuck LP tokens, APR confusion and impermanent loss.
Yield
🖼
NFT mint / transfer
Failed mint, metadata not updating, or missing NFTs.
NFTs
⚡
Flash loan issues
Flash loan execution failures or arbitrage opportunities.
Advanced DeFi
🛡
MEV protection
Front-running, sandwich attacks, or MEV extraction.
Security
developer & rpc tools
Smart contracts, RPC, logs, indexing and integrations
🛰
RPC / node errors
Timeouts, rate limits, invalid sender or nonce errors.
Infrastructure
📜
Smart contract
Deploy failures, verify errors, ABI or gas estimation issues.
On‑chain code
🔗
dApp connection
WalletConnect / browser wallet cannot attach to dApp.
Connectivity
📊
Indexing / subgraphs
Out‑of‑sync analytics, missing events or stale data.
Analytics
🏛
Exchange transfers
Deposit or withdrawal missing from centralized exchange.
CEX bridge
💻
Dev CI / repos
Sync issues with GitHub, GitLab or CI pipelines.
DevOps
🛡
Security review
Fast risk scan before signing or deploying contracts.
Safety
⚖
Compliance / tracing
KYC flags, sanctioned addresses and fund tracing help.
Compliance
🔌
Web3 API errors
Alchemy, Infura, QuickNode or custom RPC endpoints.
APIs
👂
Event listening
Smart contract events not firing or missed logs.
Monitoring
staking & validators
Proof-of-stake, delegation, slashing and rewards
💰
Staking rewards
Missing staking rewards or incorrect APY calculations.
Rewards
⏱
Unstaking delays
Delayed unstaking periods or withdrawal queue issues.
Lock period
🔪
Validator slashing
Slashing penalties or validator downtime issues.
Penalty
🤝
Delegation errors
Failed delegation or redelegation transactions.
PoS
🚪
Staking pool exit
Cannot exit staking pool or liquidity provider.
Exit queue
⚙
Validator setup
Node synchronization or validator key issues.
Infrastructure
🌐
Cross-chain staking
Staking across different blockchain networks.
Multi-chain
💧
Liquid staking
Staked token derivatives or liquidity issues.
Derivatives
mining & consensus
Proof-of-work, mining pools, and consensus issues
⛏
Mining pool payouts
Missing or delayed mining rewards from pools.
PoW
📉
Hashrate drops
Sudden hashrate decreases or mining hardware issues.
Performance
👻
Block orphaned
Mined blocks not accepted by network consensus.
Revenue loss
⚙
Miner configuration
Mining software configuration or optimization issues.
Setup
🍴
Consensus forks
Network forks or consensus rule changes.
Network
layer 2 & scaling
Rollups, sidechains, and scaling solutions
🔄
Rollup withdrawals
Delayed or failed L2 to L1 withdrawals.
Optimistic/ZK
🌉
Bridging to L2
Assets stuck bridging to layer 2 networks.
Scaling
🧮
L2 gas calculation
Incorrect gas estimation on layer 2 networks.
Optimization
🔄
State sync errors
Layer 2 state synchronization failures.
Sync
🔗
Sidechain issues
Interoperability with sidechains or child chains.
Interop
oracles & data
Price feeds, data providers, and oracle networks
📈
Price feed stale
Oracle price data outdated or inaccurate.
Data risk
🎭
Oracle manipulation
Suspected oracle manipulation or flash loan attacks.
Security
🔗
Chainlink nodes
Chainlink node issues or data feed problems.
Oracles
🎲
Randomness failures
VRF or random number generation issues.
RNG
privacy & security
Privacy coins, mixing, and advanced security
🔒
Zk-SNARKs proofs
Zero-knowledge proof generation or verification.
Privacy
🌀
Coin mixing
CoinJoin or mixing service issues.
Anonymity
👤
Stealth addresses
Stealth address generation or recovery.
Privacy
📋
Audit findings
Security audit results or vulnerability assessment.
Review
governance & daos
Voting, proposals, and decentralized governance
🗳
Voting power
Voting token delegation or power calculation.
Governance
📜
Proposal submission
DAO proposal creation or submission failures.
Proposals
🏦
Treasury management
DAO treasury access or fund management.
Finance
📸
Snapshot voting
Off-chain voting or Snapshot.org issues.
Voting
mobile & apps
Mobile wallets, apps, and device-specific issues
📱
Mobile wallet sync
Mobile wallet not syncing with blockchain.
Sync
🔐
App permissions
Mobile app permissions or security settings.
Security
🔔
Push notifications
Transaction notifications not working.
Alerts
👆
Biometric auth
Face ID, Touch ID, or fingerprint issues.
Auth
exchange & trading
CEX, DEX, and trading platform issues
📊
Order book errors
Trading order placement or cancellation.
Trading
⚖
Margin trading
Leverage positions or margin calls.
High risk
🔑
API key issues
Exchange API key permissions or limits.
APIs
🚫
Withdrawal limits
Exchange withdrawal restrictions or KYC.
Limits
token standards
ERC standards, token contracts, and implementations
✅
ERC-20 approvals
Token approval issues or allowance reset.
Tokens
🖼
ERC-721 transfers
NFT transfer failures or metadata.
NFTs
📦
ERC-1155 batches
Multi-token batch operations failures.
Multi-token
🪙
SPL token issues
Solana Program Library token problems.
Solana
advanced & miscellaneous
Advanced technical issues and edge cases
⚛
Quantum resistance
Post-quantum cryptography concerns.
Future
🔀
Interoperability
Cross-chain communication protocols.
Cross-chain
🔄
Smart contract upgrade
Proxy patterns or contract migration.
Upgrades
⛽
Gasless transactions
Meta-transactions or relay services.
Innovation
🎭
Zero-knowledge proofs
zk-STARKs or other ZK proof systems.
Advanced