ORA-00382: 32768 not a valid block size, valid range [2048..16384]

This error refers to the OS having limitation on block size selection:   General quide for block sizes per OS

AIX-Based Systems,Compaq Tru64 UNIX,HP 9000 Series HP-UX,Linux Intel,Sun SPARC Solaris, (Windows NT, 95, 98, 2000): Have a DB_BLOCK_SIZE capability of 2048 to 16384

Linux, Solaris,AIX, HP, Tru64: Have a DB_BLOCK_SIZE capability of 2048 to 32768