This means DBI is not loaded properly, so it's probably not installed properly. I don't know much about ppm, but what I can find online seems to indicate you need to: 
ppm remove DBI
ppm install DBI

[download]
I hope it helps....

In reply to Re^5: (mysql) failing to locate object method by Gilimanjaro
in thread (mysql) failing to locate object method by sriraj

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