My pokemons are not their in my ids

Heyoo staffs,
My Id = Arnab20
i am a very old player of pro and i came to the game almost after one year ig but what i saw that my pokedex is empty only some mons like jhoto bug compi mons , my legendrys and 100lvl mons are their other mons are not in my dex i got mons filled mostly upto box 7 cuz i am like to catch mons and my some event mons like glitched ghastly , is also not their .

i dont remember the exact number of mons but i am sure i dont have so less pokemons
looking for further clarification .
thankyou