Terrain Correction error with gpt

I 'm trying to run a terrain correction. I’m using gpt. I get the following error.
What does it mean?

SEVERE: org.esa.snap.product.library.v2.activator.ProductLibraryActivator: Failed to initialize the database.
org.h2.jdbc.JdbcSQLException: A file path that is implicitly relative to the current working directory is not allowed in the database URL “jdbc:h2:?/.snap/product-library/products”. Use an absolute path, ~/name, ./name, or the baseDir setting instead. [90011-197]

The question mark in dbc:h2:?/.snap... was probably meant to be a tilde (linux and macOS shorthand for $HOME), e.g., dbc:h2:~/.snap.... This might be a simple typing error or the ? may replace a non-ASCII character that resembles a tilde.