Error message simply states that the image path is wrong. Please upload all images under
/media/import folder under document root of Magento in the same folder structure as you mentioned in .csv file.
Then check the .csv file that you don't have any spaces or special characters in the path of images in the .csv file.
Now please import the .csv file by System > Import (dataflow profiles).
Note: If you are in doubt that path of images will match with path of images in the folder, then put all images directly in /media/import folder and set the path to all images in the .csv file as /imagename.extension
For example, if image path is /t/_/t_negro_earl_grey_infusiones_chas_tetique_tienda_te_online.jpeg, then change it to /t_negro_earl_grey_infusiones_chas_tetique_tienda_te_online.jpeg in the .csv file.
Update: If it is more important for you to import products (even without images), then you can remove images columns from CSV file and import products without images first.
Then create a new CSV file with only SKU, image, small_image and thumbnail fields (if you want, you can also add columns for labels of images) and import this CSV with the same process. It will update images in the products by matching products' SKUs.
Please let me know if you find any issue again.