[Scenario]

pawn Код:

SetObjectMaterialText(uzrasasusiu, "SA-MP {FFFFFF}0.3{008500}e", 0, OBJECT_MATERIAL_SIZE_512x512,\
"Arial", 28, 0, 0xFFFF8200, 0xFF000000, OBJECT_MATERIAL_TEXT_ALIGN_CENTER);

I see you're using a backwards slash within that line. I would remove it and try again.

pawn Код:

SetObjectMaterialText(uzrasasusiu, "SA-MP {FFFFFF}0.3{008500}e", 0, OBJECT_MATERIAL_SIZE_512x512, "Arial", 28, 0, 0xFFFF8200, 0xFF000000, OBJECT_MATERIAL_TEXT_ALIGN_CENTER);

Ref: https://sampwiki.blast.hk/wiki/SetObjectMaterialText