WordPress database error

WordPress database error: [Table 'ph20603254511Joma_.wp_posts' doesn't exist]

DELETE a,b,c FROM wp_posts a LEFT JOIN wp_term_relationships b ON (a.ID = b.object_id) LEFT JOIN wp_postmeta c ON (a.ID = c.post_id) WHERE a.post_type = 'nav_menu_item'

1:1 Start tag expected, '<' not found

There was an error when reading this WXR file

Details are shown above. The importer will now try again with a different parser...

Failed to import pa_hd-size 1 TB: Invalid taxonomy.

Failed to import pa_screen-size 1,57": Invalid taxonomy.

Failed to import pa_screen-size 10.6": Invalid taxonomy.

Failed to import pa_screen-size 10": Invalid taxonomy.

Failed to import pa_screen-size 12.1": Invalid taxonomy.

Failed to import pa_screen-size 13.3": Invalid taxonomy.

Failed to import pa_screen-size 14.1": Invalid taxonomy.

Failed to import pa_screen-size 15.4": Invalid taxonomy.

Failed to import pa_screen-size 17": Invalid taxonomy.

Failed to import pa_hd-size 2 TB: Invalid taxonomy.

Failed to import pa_screen-size 42": Invalid taxonomy.

Failed to import pa_screen-size 5.5": Invalid taxonomy.

Failed to import pa_screen-size 5": Invalid taxonomy.

Failed to import pa_screen-size 50": Invalid taxonomy.

Failed to import pa_hd-size 512 GB: Invalid taxonomy.

Failed to import pa_screen-size 55": Invalid taxonomy.

Failed to import pa_screen-size 6": Invalid taxonomy.

Failed to import pa_hd-size 64 GB: Invalid taxonomy.

Failed to import pa_screen-size 65": Invalid taxonomy.

Failed to import pa_screen-size 7": Invalid taxonomy.

Failed to import pa_screen-size 75": Invalid taxonomy.

Failed to import pa_color Black: Invalid taxonomy.

Failed to import pa_color Blue: Invalid taxonomy.

Failed to import pa_color Brown: Invalid taxonomy.

Failed to import pa_texture brushed aluminium: Invalid taxonomy.

Failed to import pa_texture carbon: Invalid taxonomy.

Failed to import pa_texture chrome: Invalid taxonomy.

Failed to import pa_brand Denos: Invalid taxonomy.

Failed to import pa_warranty Extended: 1 + 1 year: Invalid taxonomy.

Failed to import pa_warranty Extended: 1 + 2 years: Invalid taxonomy.

Failed to import pa_warranty Extended: 2 + 1 year: Invalid taxonomy.

Failed to import pa_warranty Extended: 2 + 2 years: Invalid taxonomy.

Failed to import pa_color Gray: Invalid taxonomy.

Failed to import pa_brand Mobi: Invalid taxonomy.

Failed to import pa_brand Odimmo: Invalid taxonomy.

Failed to import pa_texture satin: Invalid taxonomy.

Failed to import pa_color Silver: Invalid taxonomy.

Failed to import pa_warranty Standard: 1 year: Invalid taxonomy.

Failed to import pa_warranty Standard: 2 years: Invalid taxonomy.

Failed to import pa_brand Triangles: Invalid taxonomy.

Failed to import pa_brand Vedeo: Invalid taxonomy.

Failed to import pa_color White: Invalid taxonomy.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Media “bethemestore-section-bg1” already exists.

Fatal error: Maximum execution time of 60 seconds exceeded in G:\PleskVhosts\jomastore.com\httpdocs\joma_cart\wp-includes\class-wp-image-editor.php on line 566

There has been a critical error on this website. Please check your site admin email inbox for instructions.

Above is the error message I got when I installed the pre built websites.

After required plugins installation and activation, I moved for installation of pre built websites.

Please help.

Merry Christian