PSAPUNDO Tablespace issue in BW system

Hi Friends,

We have SAP BIW netweaver 7.0 running on Linux OS and Oracle RAC 11g (11.2.0.4).

Oracle database RAC is having three DB nodes and UNDO table space is configured for each DB node.

But when we are loading data in BW from CRM and ECC system then we are getting dump that PSAPUNDO table space can not be extended.

one undo table sqapce having size 60 GB attached with primary DB node

second unod table space is having size 167 GB attached with secondary DB node

third undo table space is having 90 GB size and connected with third DB node.

We are getting dump for undo tablespace attached with primary DB node.

Please suggest what can be done.