Trouble loading Custom Firmware

[fcapozzi62]

Hi, i have the EvilCrowV2 working with default firmware v1.3.3
Attempted to load this FlipperZero firmware.
Copied the three folder CONFIG, HTML and SUBGHZ into the SD card.
From firmware update page I've loaded the BETA_v3.3.1_EvilCrowRF_Firmware.bin file.
Process completed with success.
However on reboot the SSID didn't change was still "Evil Crow RF v2" instead of ECRF. The home page at 192.168.4.1 loaded with the red fonts .. but on each function i have a page that say. 500 Intenal Server Error.

Flashing again the Standard. v1.3.3. firmware from Arduino IDE and also the HTML and URF folder restore the standard beheaviour.
I did something wrong ?

Tnx for help.