[Koha] Searching imported records in OPAC

[K.T Anuradha]

Hello,

I did bulk import of records on Koha 3.0 with bulkimport script. I could 
do a search on a few terms successfully. However, when I give a* or m* it 
gives the following error, whereas p* or z* retrieves the results 
properly.

Error:
Can't call method "raw" on an undefined value at 
/usr/share/koha/lib/C4/Search.pm line 487.

Could anyone tell me the reason for this pl?

-Anuradha