don't mind the FOTA, just flash FS, MAIN and Custom Pack, and use the next firmware version,R4EA031 for MAIN and R4ED001 for FS. According to your log you need these files:
FS: Downloads - R4EA031_RED49 - W810_R4ED001_FS_CENT_EUROPE_RED49 - Top Sony Forums
MAIN: Downloads - R4EA031_RED49 - W810_R4EA031_MAIN_GENERIC_HN_RED49 - Top Sony Forums
Custom pack: Downloads - w810custpack - W810_CDA102555_2_R2A_Generic_CENT_EUROPE - Top Sony Forums