[Exim] exicyclog tool issue

Dear Experts,

- I installed exim 4.24 and it works fine.
- However, I am using exicyclog to rotate my log files especially
exim_mainlog and exim_rejectlog but the issue is that once I launch it the
exim_mainlog file is removed and exim is no more able to work !
(Even if I am not a developer expert, I looked to the script
(/usr/local/exim/bin/exicyclog) and saw that a command do "mv exim_mainlog
exim_mainlog.01" and no furter one generates the new exim_mainlog file....).

Many thanks in advance for your help.

Gregoire