'expecting color, null received: /var/www/vhosts/schuleamtierpark.de/httpdocs
   /public/typo3conf/ext/fp_basis/Resources/Public/css/scss/node_modules/../../
   ../node_modules/bootstrap/scss/mixins/_table-variants.scss on line 5, at col
   umn 5
Call Stack:
#0 mixin table-variant /var/www/vhosts/schuleamtierpark.de
   /httpdocs/public/typo3conf/ext/fp_basis/Resources/Public/css/scss/node_modul
   es/../../../node_modules/bootstrap/scss/_tables.scss on line 147
#1 import /
   var/www/vhosts/schuleamtierpark.de/httpdocs/public/typo3conf/ext/fp_basis/Re
   sources/Public/css/scss/node_modules/../../../node_modules/bootstrap/scss/_t
   ables.scss /var/www/vhosts/schuleamtierpark.de/httpdocs/public/typo3conf/ext
   /fp_basis/Resources/Public/css/scss/node_modules/../../../node_modules/boots
   trap/scss/bootstrap.scss on line 23
#2 import /var/www/vhosts/schuleamtierpa
   rk.de/httpdocs/public/typo3conf/ext/fp_basis/Resources/Public/css/scss/node_
   modules/../../../node_modules/bootstrap/scss/bootstrap.scss /var/www/vhosts/
   schuleamtierpark.de/httpdocs/public/typo3conf/ext/fp_basis/Resources/Public/
   css/scss/node_modules/_bootstrap.scss on line 17
#3 import /var/www/vhosts/s
   chuleamtierpark.de/httpdocs/public/typo3conf/ext/fp_basis/Resources/Public/c
   ss/scss/node_modules/_bootstrap.scss /var/www/vhosts/schuleamtierpark.de/htt
   pdocs/public/typo3conf/ext/fp_basis/Resources/Public/css/scss/main.scss on l
   ine 1
#4 import /var/www/vhosts/schuleamtierpark.de/httpdocs/public/typo3con
   f/ext/fp_basis/Resources/Public/css/scss/main.scss (unknown file) on line 1' (1519 chars)