Wrong volume and market cap data for some coins

[deciphercypher]

The response of cg.get_coin_market_chart_by_id(id=ripple,vs_currency=' usd',days='30') differs strongly from the response of https://api.coingecko.com/api/v3/coins/ripple/market_chart?vs_currency=usd&days=30 in terms of market cap and volume. For the pycoingecko response, market cap is zero while volume is much lower compared with the URL output. The symbols where I found this to be the case are:
ADA
APE
AST
BCH
BNX
CAKE
CHESS
CITY
CLV
COMP
DAR
DOGE
DOT
DREP
EOS
EZ
FARM
FIL
GRS
GRT
GTC
HIGH
IOTX
LINA
LOOM
LTC
MC
MDX
OG
ONG
ONT
PERL
PNT
POLY
PORTO
RAD
SAND
SNT
SUPER
TRU
UNI
UST
WAVES
XRP