Failing to Erase RA6M1

Hello!

I currently face a problem, in which I'm unable to flash my EK-RA6M1. Im currently trying to develop a USBFS-interface but cant really test my code, since flashing is not possible. What I try to do is erasing my Device via the j-Link Commander V7.94. When using the Erase command i get the following Error:

Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: R7FA6M1AD
Type '?' for selection dialog
Device>
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "R7FA6M1AD" selected.


Connecting to target via SWD
InitTarget() start
Identifying target device...
SWD selected. Executing JTAG -> SWD switching sequence...
Initializing DAP...
DAP initialized successfully.
Low power mode detected. Waking device from low power mode.
InitTarget() end - Took 10.8ms
Found SW-DP with ID 0x5BA02477
DPIDR: 0x5BA02477
CoreSight SoC-400 or earlier
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
AP[1]: APB-AP (IDR: 0x44770002)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
[0][0]: E000E000 CID B105E00D PID 000BB00C SCS-M7
[0][1]: E0001000 CID B105E00D PID 003BB002 DWT
[0][2]: E0002000 CID B105E00D PID 002BB003 FPB
[0][3]: E0000000 CID B105E00D PID 003BB001 ITM
[0][4]: E0040000 CID B105900D PID 000BB9A1 TPIU
[0][5]: E0041000 CID B105900D PID 000BB925 ETM
[0][6]: E0042000 CID B105900D PID 002BB908 CSTF
[0][7]: E0043000 CID B105900D PID 001BB961 TMC
[0][8]: E0044000 CID B105F00D PID 001BB101 TSG
Memory zones:
  Zone: "Default" Description: Default access mode
Cortex-M4 identified.
J-Link>erase
No address range specified, 'Erase Chip' will be executed
'erase': Performing implicit reset & halt of MCU.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Erasing device...
J-Link: Flash download: Only internal flash banks will be erased.
To enable erasing of other flash banks like QSPI or CFI, it needs to be enabled via "exec EnableEraseAllFlashBanks"

****** Error: Failed to erase sectors 0 @ address 0x0100A150 ((erase error))
Failed to erase sectors.

J-Link: Flash download: Total time needed: 0.211s (Prepare: 0.151s, Compare: 0.000s, Erase: 0.016s, Program: 0.000s, Verify: 0.000s, Restore: 0.043s)
ERROR: Erase returned with error code -5.