Server errors fixed. Setting changed – disable strict mode.
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for my future reference:
in my.ini file (C:\wamp64\bin\mysql\mysql5.7.26)
uncomment this:
sql-mode=””
and comment out this line:
;sql-mode=”STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_ZERO_DATE,NO_ZERO_IN_DATE,NO_AUTO_CREATE_USER”
See https://www.linode.com/community/questions/17070/how-can-i-disable-mysql-strict-mode