I just started getting these errors in Firebird.log. The first error is always followed by the second. It appears to always be the same database. What might be causing this? I am using Firebird 2.5.3.26778.

NOVADB (Server) Mon Nov 11 19:17:03 2019

Operating system call ReleaseSemaphore failed. Error code 298

NOVADB (Server) Mon Nov 11 19:19:03 2019

Database: E:\LEGEND\OPERATIONS.FDB

deadlock