On running xshield-qt v3.0.4.2 on ubuntu linux 16.04.5 I get this error:
shield-qt: malloc.c:2394: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.
Can somebody help me? (I'm a first time user of xsh)