Hi

I am facing broken page title issue due to tokens. Tokens are not working properly.

1)[current-page:page-title] | [site:name] This pattern will show Array| Array instead of values
2) After deleting Token cache It will fix and showings values correctly
3)But after few hours tokens removed from 'Available List' on site.com/admin/config/search/page-title page.
4) Also getting log message : Notice: Array to string conversion in token_replace() (line 102 of /disk2/html/gtech/includes/token.inc).

Please anyone let me know what the reason behind this and How to fix it.

Thanks in adavance