Try (alternative to get SchoolTool's version):
$ dpkg -s schooltool
Are you just testing/trying SchoolTool or is this a "production" server? What version of Ubuntu are you running? Out of curiosity, how much RAM do you have in this server?
Try (alternative to get SchoolTool's version):
$ dpkg -s schooltool
Are you just testing/trying SchoolTool or is this a "production" server? What version of Ubuntu are you running? Out of curiosity, how much RAM do you have in this server?