TxWhy

Error codes / Lighthouse

FailedToSerialize

Lighthouse · Custom(6008) · 0x1778

custom program error: 0x1778

What it means

A value could not be written to the memory account. Lighthouse is the assertion program wallets and trading apps append to a transaction as a safety guard.

The program's own message: “FailedToSerialize”

What to do

This is a problem in how the app built its guard, not in your funds or the market. Retry from the app; if it repeats, report it to the app with this transaction.

Have the transaction that failed with this?

Paste its signature. TxWhy shows the exact instruction and inner call that raised the error, and rebuilds the transaction when the cause is one it can fix (compute limit, expired blockhash, priority fee, stale swap quote).

Code 6008 means something else in other programs

Custom codes are private to each program. Check which program actually raised it: it is the innermost failed call, not necessarily the program you called.