scanner logfile empty?

If I want to open a scanner logfile and I get a white screen. I tried it with another browser but got the same results. Also restarting LMS didn't fix this. It is the first time I experienced this.
I found out that the system doesn't make a scanner.log file after scanning??

/volume1/@appstore/SqueezeCenter/Logs/scanner.log

Any ideas?

Wilco

LMS 7.7.2 Cedarview (Synology)