Data size error reported during training

[oz2xx]

Error message： raise ValueError(f'Scale mismatches. GT ({h_gt}, {w_gt}) is not {scale}x ', ValueError: ('Scale mismatches. GT (256, 256) is not 4x ', 'multiplication of LQ (256, 256).')

Is the amount of data required for fine-tuning training with my own data?Please teach me how to fix it