Solution : https://service.sap.com/sap/support/notes/686231 (SAP Service marketplace login required)
Key words : 
exec sql performing app_index2, implemented evi stage 2 processing, /400 as400 sql0304 qaqqini reason, evi stage 2 parameters, sql error -304 occurs, del ak230796             order, dbs/db4/qaqqinilib, dbs/db4/alternate_qaqqinilib, alternate qaqqini file, specifiedthe profile parameter
Related Notes : 
       
| 392165 | iSeries: Known problems under V5R1M0/V5R2M0 |