Slave failing to replication in MariaDB 10
max_connections=100000 -- Unreasonable, and dangerous.  Even 1000 may be unnecessarily high for the number of simultaneous connections.

10G for the buffer pool -- I assume you have at least 15GB of RAM?

It sounds like the data on the two servers, at least for redacct, is not consistent.  How did you initially populate the Slave?