Ok;
if anyone ever would wish to use Data Tables Generator by Supsystic on Wordpres Multisite installation MUST copy and rename tables in data base via phpMyAdmin:
this 4 tables copy:
wp_supsystic_tbl_columns
wp_supsystic_tbl_diagrams
wp_supsystic_tbl_rows
wp_supsystic_tbl_tables
and paste but renamed:
wp_2_supsystic_tbl_columns
wp_2_supsystic_tbl_diagrams
wp_2_supsystic_tbl_rows
wp_2_supsystic_tbl_tables
Greetings