Change partition scheme for adding nvs key

Hi i have the following partition file in working platformio (esp32 with 4 MB )

Name, Type, SubType, Offset, Size, Flags

nvs,      data, nvs,     0x9000,  0x5000,
otadata,  data, ota,     0xe000,  0x2000,
app0,     app,  ota_0,   0x10000, 0x1D0000,
app1,     app,  ota_1,   0x1E0000,0x1D0000,
spiffs,   data, spiffs,  0x3B0000,0x50000,

I want to add the part with the key for nvs partition… I have tried to modify in this way …

# Name,   Type, SubType, Offset,  Size, Flags

nvs,      data, nvs,     0x9000,  0x5000,
otadata,  data, ota,     0xe000,  0x2000,
app0,     app,  ota_0,   0x10000, 0x1D0000,
app1,     app,  ota_1,   0x1E0000,0x1D0000,
spiffs,   data, spiffs,  0x3B0000,0x50000,
nvs_key,  data, nvs_keys,, 0x1000, encrypted,

But is not working I got

rst:0x3 (SW_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5828
entry 0x400806a8
ets Jul 29 2019 12:21:46

rst:0x3 (SW_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5828
entry 0x400806a8
ets Jul 29 2019 12:21:46

can you tell me why it is not working ?

Not enough space ?

Thanks