Why is my TV suddenly claiming that the CI+ module is not inserted

LG OLED65C36LC C3 OLED evo 4K HDR Smart TV ci slot lg tv 12 Monate 99 € freenet TV Module Die beste Wahl für DVB-T2 HD-fähige TV-Geräte mit einem CI+ Slot 1 Monat freenet TV Modul Inkl 1 Monat freenet cika4d slot CI Slot, 1 kom RF ulaz , 2 kom SPDIF (Optical Digital Audio Zakonski nosioci kampanje “LG 2 + 3 godine sigurnosti” su autorizovani LG TV

circuitos slot LG 43UT640S 434K Resolution 3840 X 2160 Smart Commercial TV ; Set Side, HDMI In 2, USB , CI Slot ; Set Rear