-rw------- 1 root root 49384969599 Jun 30 08:32 debug.log
-rw------- 1 root root 23158 May 10 10:01 fee_estimates.dat
-rw------- 1 root root 9341458 May 10 10:01 governance.dat
it's time to delete debug.log
add in biblepay.conf
shrinkdebug=1
this will shrink your debug.log every time you restart biblepay daemon