Wow the ignorance is unbelievable.
There are different censures that theologians and Popes have given to different errors, and people would know this having read parts of Denzinger (don’t use the modernist Karl Rahner version).
To name a few, there is heresy, error, and offensive to pious ears. There are also theological conclusions which are the conclusions of taking different dogmas into consideration, and coming to a resolution concerning them.
Heresy is denying an article of Faith, or dogma; something that has been defined by the Church as such. Error is not quite a dogma but would be a mortal sin to deny (doctrine on guardian angels may fall under this category). Offensive to pious ears is self explanatory. This is all easy to verify online.