[Solved] Script error in graph tree page

[ipcchm]

Hello experts,

May I have a question. I got the script error when I visiting the graph tree page. The " 'ou20' is undefined " is got(pic 1). When I check the graph tree settings, this is found some very deep headers in graph tree(pic 2). This should be empty but it not shown in graph tree setting page, so I cannot delete it in Web GUI. Is it possbile to delete it on mysql statements?

Cacti : 0.8.6j
Mysql : 3.23.58, Protocol version : 10
RRDtool :1.0.49

Thank you very much.

[ipcchm]

Hello,

Finally I trying to delete those records in table "graph_tree_items". Under the "graph_tree_items" table, find all records which "order_key" field beginning "xxxxxxx.." and erase them. I'm not the expert in SQL so I'm installed phpMyAdmin for help.

Regards,