The website encountered error

Problem/Motivation

Getting message "The website encountered an unexpected error. Try again later." of first time "enable and set default" to this theme.

Drupal\Core\Config\PreExistingConfigException: Configuration objects (block_content.type.banner_block_left, block_content.type.banner_block_right, block_content.type.footer_logo, block_content.type.hero_banner, core.entity_form_display.block_content.banner_block_left.default, core.entity_form_display.block_content.banner_block_right.default, core.entity_form_display.block_content.footer_logo.default, core.entity_view_display.block_content.banner_block_left.default, core.entity_view_display.block_content.banner_block_right.default, core.entity_view_display.block_content.footer_logo.default, field.field.block_content.banner_block_left.field_button, field.field.block_content.banner_block_left.field_heading, field.field.block_content.banner_block_left.field_hero_image, field.field.block_content.banner_block_right.field_button, field.field.block_content.banner_block_right.field_heading, field.field.block_content.banner_block_right.field_hero_image, field.field.block_content.footer_logo.field_hero_image, field.field.block_content.hero_banner.field_button, field.field.block_content.hero_banner.field_heading, field.field.block_content.hero_banner.field_hero_image, field.field.block_content.hero_banner.field_sub_heading, field.storage.block_content.field_button, field.storage.block_content.field_heading, field.storage.block_content.field_hero_image, field.storage.block_content.field_sub_heading, image.style.material_product) provided by multi_purpose already exist in active configuration in Drupal\Core\Config\PreExistingConfigException::create() (line 65 of /app/web/core/lib/Drupal/Core/Config/PreExistingConfigException.php).

Steps to reproduce

Install theme and try to make as default.