ERROR DB Reader - Knime and Mysql database are on the same server

Hi;

Knime and Mysql database are on the same server, I was not getting any errors before. But now this error occurs, it reads the table and when it reaches the end of the table (my guess is in this direction) this error occurs. What do you think is the problem and how can I solve it?

ERROR DB Reader 39:2000 Execute failed: Communications link failure during rollback(). Transaction resolution unknown.