Your Spider should be a Steatoda species.
I also have problems with these from time to time.
By chance I cam aacros teh fact that Steatoda is heavily preyed on by Pholcus phalangioides. Introduction of the Pholcus spider in a herp room can significantly reduce the number of Steatoda and the Pholcus do not hatrm the lizards.
Last not least, Pholcus specimens do not hide and are easily removed if you do not want them anymore.

Best regards

Ingo