Recently i am tried to interpolate my database, but this error message appering, if i understand cearly the following massage indicates that there were not sufficient points to calculate the variogram, is there any side solution to create an interpolated map without extending my database?
010079: Unable to estimate semivariogram.—ArcGIS Pro | Documentation
From Pro's help
By increasing the cell size, you will increase the number of sample points per cell size interval, thereby providing enough data points to estimate the semivariogram. Once the semivariogram is estimated, a smaller cell size can be used in creating the actual output raster.
Did you try that option?