The solver could not allocate the memory for the calculation. Please increase the number of computing cores under Simulation Control.
The solver failed to allocate the memory for the analysis.
This error may occur when a simulation with a large mesh is assigned to a smaller machine for the analysis.
You can choose bigger machine for the analysis. By choosing it, you can provide the solver with more memory under which the analysis can be easily solved. For example, for a bigger mesh i.e. more than a million 3D elements, assigning analysis to 1,2 or probably 4 cores under Simulation Control will lead to this error. Try to assign at least 8, 16 or 32 cores.