If you've been keep up with the posts on the News thread at the top of this section, you'll know that one of the main server's disks failed recently.
All of the bespoke scripts to do with trickles and credits were on it, so they're having to be re-compiled and installed on the new disks.
This is taking time, as this project uses a very customised version of the BOINC server code.
Up until about October last year, most things about this project ran smoothly. Then the long time programmers started to leave for new jobs, and the project has been struggling ever since with learning, software, and hardware issues.
It's hoped that normal service will resume "soon".