Update Why-have-traces-no-others.md

docs/en/FAQ/Why-have-traces-no-others.md

 **Problem**：
 - There is no abnormal log in Agent log and Collector log, 
-- The page can see the trace stack, but the others cannot see any data
-- The top of the page Time line is inconsistent with the current system time
+- The traces show, but no other info in UI.
 
 **Reason**：
 The operating system where the monitored system is located is not set as the current time zone, causing statistics collection time points to deviate.
 
 **Resolve**：
-Set the time zone
\ No newline at end of file
+Make sure the time is sync in collector servers and monitored application servers.