Cause
The user attempted to set timed_statistics to FALSE when statistics_level was not BASIC. timed_statistics is required to be TRUE to collect meaningful statistics when statistics_level is set to TYPICAL or ALL.
The user attempted to set timed_statistics to FALSE when statistics_level was not BASIC. timed_statistics is required to be TRUE to collect meaningful statistics when statistics_level is set to TYPICAL or ALL.
Either set timed_statistics to TRUE or set statistics_level to BASIC.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e0.htm
https://community.oracle.com/message/1193289
https://community.oracle.com/message/4497062
https://community.oracle.com/message/1117811
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