Lora expLoRaBLE upload problems

Sketch uses 115976 bytes (11%) of program storage space. Maximum is 983040 bytes.

Global variables use 27728 bytes (7%) of dynamic memory, leaving 365488 bytes for local variables. Maximum is 393216 bytes.

/Users/wilfred/Library/Arduino15/packages/SparkFun/hardware/apollo3/2.2.1/tools/uploaders/asb/dist/macosx/asb --bin “/private/var/folders/j0/mxdzhynx7pg55j137qqq5v1r0000gn/T/arduino/sketches/FE8F9D353E201D6403DA432B367C6D21/Blink.ino.bin” --load-address-blob 0x20000 --magic-num 0xCB -o /private/var/folders/j0/mxdzhynx7pg55j137qqq5v1r0000gn/T/arduino/sketches/FE8F9D353E201D6403DA432B367C6D21/Blink.ino --version 0x0 --load-address-wired 0xC000 -i 6 --options 0x1 -b 115200 -port “/dev/cu.usbserial-10” -r 2 -v

Header Size = 0x80

original app_size 0x1d338 ( 119608 )

load_address 0xc000 ( 49152 )

app_size 0x1d338 ( 119608 )

w0 = 0xcb01d3b8

Security Value 0x10

w2 = 0x10008080

addrWord = 0xc000

versionKeyWord = 0x0

child0/feature = 0xffffffff

child1 = 0xffffffff

crc = 0xb6f3a97f

Writing to file /private/var/folders/j0/mxdzhynx7pg55j137qqq5v1r0000gn/T/arduino/sketches/FE8F9D353E201D6403DA432B367C6D21/Blink.ino_OTA_blob.bin

testing: /private/var/folders/j0/mxdzhynx7pg55j137qqq5v1r0000gn/T/arduino/sketches/FE8F9D353E201D6403DA432B367C6D21/Blink.ino_OTA_blob.bin

Header Size = 0x60

app_size 0x1d3b8 ( 119736 )

Writing to file /private/var/folders/j0/mxdzhynx7pg55j137qqq5v1r0000gn/T/arduino/sketches/FE8F9D353E201D6403DA432B367C6D21/Blink.ino_Wired_OTA_blob.bin

Image from 0x0 to 0x1d3b8 will be loaded at 0x20000

Connecting over serial port /dev/cu.usbserial-10…

Sending Hello.

No response for command 0x00000000

Failed to respond

Fail

Sending Hello.

No response for command 0x00000000

Failed to respond

Fail

Sending Hello.

No response for command 0x00000000

Failed to respond

Fail

Tries = 3

Upload failed

However, on attempting it for a second time, it no longer works. Any idea why this is happening?