i cant find trans.log file, but i hope this log can help:
R3trans -d -w /dev/tty
This is R3trans version 6.24 (release 721 - 14.10.14 - 20:14:08).
unicode enabled version
4 ETW000 R3trans version 6.24 (release 721 - 14.10.14 - 20:14:08).
4 ETW000 unicode enabled version
4 ETW000 ===============================================
4 ETW000
4 ETW000 date&time : 29.06.2015 - 11:29:33
4 ETW000 control file: <no ctrlfile>
4 ETW000 R3trans was called as follows: R3trans -d -w /dev/tty
4 ETW000 trace at level 2 opened for a given file pointer
4 ETW000 [ dev trc,00000] Mon Jun 29 11:29:33 2015 70 0.000070
4 ETW000 [ dev trc,00000] db_con_init called 12 0.000082
4 ETW000 [ dev trc,00000] set_use_ext_con_info(): rsdb/ssfs_connect not set => ssfs not used 14 0.000096
4 ETW000 [ dev trc,00000] determine_block_commit: no con_hdl found as blocked for con_name = R/3
4 ETW000 15 0.000111
4 ETW000 [ dev trc,00000] create_con (con_name=R/3) 8 0.000119
4 ETW000 [dbcon.c ,00000] *** ERROR => Invalid profile parameter dbms/type (or environment variable dbms_type) = <undef>, cannot load DB library
4 ETW000 28 0.000147
2EETW169 no connect possible: "environment variable dbms_type is not set."
2EETW169 no connect possible: "environment variable dbms_type is not set."
R3trans finished (0012).