XQuartz on Mac: problem with OpenGL

I am running XQuartz 2.7.11 on iMac High Sierra and face problems with OpenGL libraries:

libGL error: No matching fbConfigs or visuals found

libGL error: failed to load driver: swrast

!WARNING: This program requires OpenGL version >=3.2. This is not supported by the current hardware/software setup. The program will switch into partial compatibility mode and try to go on, but there is a chance that it will not work and visual quality will be impacted.

Context initialized to GL 1.4.

GL says it's context is version: 1.4 (2.1 APPLE-16.5.10)

!ERROR: Problem with OpenGL: Error in void FFullScreenQuad::Init()/glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*4, 0): Invalid operation (op not allowed in current state)

Context initialized to GL 1.4.

GL says it's context is version: 1.4 (2.1 APPLE-16.5.10)

!ERROR: Problem with OpenGL: Error in void FFullScreenQuad::Init()/glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*4, 0): Invalid operation (op not allowed in current state)

Context initialized to GL 1.4.

GL says it's context is version: 1.4 (2.1 APPLE-16.5.10)

!ERROR: Problem with OpenGL: Error in void FFullScreenQuad::Init()/glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*4, 0): Invalid operation (op not allowed in current state)

!ERROR: Failed to compile GLSL shader: OpenGL says for file ':/shader/vertex5.glsl':

!ERROR: Failed to compile GLSL shader: OpenGL says for file ':/shader/pixel5.glsl':

!ERROR: Failed to compile GLSL shader: OpenGL says for file ':/shader/pixel_common.glsl':

Please help,

Irena