kotlin opengl trouble

ackage com.stuff.vitali.rubicscubeopengl

import android.content.Context
import android.opengl.GLES20.*
import android.util.Log


object ShaderUtils {
    const val TAG = "SHADER_UTILS_TAG"
    fun createProgramm(vertexShaderId: Int, fragmentShaderId: Int): Int {
        val programId = glCreateProgram()
        if(programId == 0) return 0
        glAttachShader(programId, vertexShaderId)
        glAttachShader(programId, fragmentShaderId)
        glLinkProgram(programId)
        val linkStatus = IntArray(1)
        glGetProgramiv(programId, GL_LINK_STATUS, linkStatus, 0)
        if(linkStatus[0] == GL_FALSE) {
            val linkLogInfo = glGetProgramInfoLog(programId)
            Log.d(TAG, "Error to link programm: $linkLogInfo")
            Log.d(TAG, "End error")
            glDeleteProgram(programId)
            return 0
        }
        return programId
    }

    fun createShader(context: Context, type: Int, shaderRawResourceId: Int): Int {
        val shaderString = FileUtils.readTextFromRaw(context, shaderRawResourceId)
        val shaderId = glCreateShader(type)
        if(shaderId == 0) return 0
        glShaderSource(shaderId, shaderString)
        glCompileShader(shaderId)
        val compileStatus = IntArray(1)
        glGetShaderiv(shaderId, GL_COMPILE_STATUS, compileStatus, 0)
        if (compileStatus[0] == GL_FALSE){
            val compileLogInfo = glGetShaderInfoLog(shaderId)
            Log.d(TAG, "Error to compile shader: $compileLogInfo in \n$shaderString")
            Log.d(TAG, "End error")
            glDeleteShader(shaderId)
            return 0
        }
        return shaderId
    }
}