I've been using this as a close vote reason:
This question is being voted for closure because the question has made mention that a server control panel is installed on the system. Server control panels can and will modify aspects of a server (including but not limited to system tools, shells, and the kernel itself), that make any and all operations unpredictable. The ServerFault community is largely in agreement that standard and repeatable solutions are unlikely and inconsistent results are so common that we often choose to close questions sush as that.
Which could be re-written for a closure reason (as opposed as just a voting to close reason):
This question was closed because it involves, wether directly or indirectly, a server control panel. Server control panels can and will modify aspects of a system (including but not limited to default system tools, standard packages, shells, and the kernel itself), which makes any and all operations unpredictable. As a result the ServerFault community cannot offer standard and repeatable solutions to any problem, no matter how tangentially related.
Add links as necessary? There seems to be a metric-bazillion different FAQs, links, canonical answers, and the like that have been referenced concerning this topic.