postgres7 Cache write error

[sushil]

Dear All,
I tried to log the error of postgres through adodb
version V4.04 Please help to find out the reason why this error come
and how can i resolve the problem :

"Fatal error: postgres7 error: [-32000: Cache write error] in
CacheExecute(/tmp/c4/adodb_c42816608328304c7f12da3f0095e1eb.cache,
SELECT display_name FROM ss_multi_select WHERE multi_select_id = 222 )
in
/home/skumar/html/selective/cp-modules/cp_adodb/adodb/adodb-errorhandler.inc.php
on line 75".

A lot of thanks in advance.

Thanks,
Sushil Kumar