Flashtool Closing TA partition error

Hello,
i`m trying to flash SonyXperia C Dual C2305 with flashtool-0.9.22.3 ..... firmware : C2305_16.0.B.2.16_Customized MEA.ftf
but it ends with errors :crying: , here is the log:

23/054/2016 12:54:17 - INFO - <- This level is successfully initialized
23/054/2016 12:54:18 - INFO - Flashtool Version 0.9.22.3 built on 08-06-2016 22:30:00
23/054/2016 12:54:18 - INFO - Executing search strategies to find proxy selector
23/054/2016 12:54:21 - INFO - No proxy found for IE. Trying next one
23/054/2016 12:54:21 - INFO - Strategy firefox failed trying next one : No Firefox installation found
23/054/2016 12:54:21 - INFO - No proxy found for java. Trying next one
23/054/2016 12:54:21 - INFO - Syncing devices from github
23/054/2016 12:54:21 - INFO - Opening devices repository.
23/054/2016 12:54:21 - INFO - Scanning devices folder for changes.
23/054/2016 12:54:29 - INFO - Pulling changes from github.
23/054/2016 12:54:31 - INFO - Quietly closing devices repository.
23/054/2016 12:54:31 - INFO - Devices sync finished.
23/054/2016 12:54:31 - INFO - Loading devices database
23/054/2016 12:54:31 - INFO - Loaded 91 devices
23/054/2016 12:54:31 - INFO - Starting phone detection
23/054/2016 12:54:35 - INFO - Device disconnected
23/055/2016 12:55:05 - INFO - Selected Bundle for Sony Xperia C(C2305). FW release : 16.0.B.2.16. Customization : Customized MEA
23/055/2016 12:55:05 - INFO - Preparing files for flashing
23/055/2016 12:55:21 - INFO - Please connect your device into flashmode.
23/055/2016 12:55:55 - INFO - Device connected in flash mode
23/055/2016 12:55:55 - INFO - Opening device for R/W
23/055/2016 12:55:55 - INFO - Reading device information
23/055/2016 12:55:55 - INFO - Phone ready for flashmode operations.
23/055/2016 12:55:55 - INFO - Opening TA partition 2
23/055/2016 12:55:55 - INFO - Current device : C2305 - QO4414C03993 - 1277-6019_R2A - 1275-5177_16.0.B.2.16 - WORLD-i_16.0.B.2.16
23/055/2016 12:55:55 - INFO - Closing TA partition
23/055/2016 12:55:55 - INFO - Start Flashing
23/055/2016 12:55:55 - INFO - Processing loader.sin
23/055/2016 12:55:55 - INFO - Checking header
23/055/2016 12:55:56 - INFO - Flashing data
23/055/2016 12:55:57 - INFO - Loader : S1_Root_bb35 - Version : MT6589_12 / Boot version : 2.14.J.2.16 / Bootloader status : NOT_ROOTABLE
23/055/2016 12:55:57 - INFO - Max packet size set to 512K
23/055/2016 12:55:57 - INFO - USB buffer size set to 512K
23/056/2016 12:56:00 - INFO - No flash script found. Using 0.9.18 flash engine
23/056/2016 12:56:00 - INFO - Opening TA partition 2
23/056/2016 12:56:00 - INFO - Writing TA unit 00002774. Value : 01
23/056/2016 12:56:00 - INFO - Closing TA partition
23/056/2016 12:56:44 - INFO - Ending flash session
23/056/2016 12:56:44 - ERROR -
23/056/2016 12:56:44 - ERROR - Error flashing. Aborted
23/056/2016 12:56:44 - INFO - Flashing finished.
23/056/2016 12:56:44 - INFO - Please unplug and start your phone
23/056/2016 12:56:44 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
23/056/2016 12:56:45 - INFO - Device connected in flash mode
23/056/2016 12:56:45 - INFO - Device disconnected

solution plz.