Deprecated: Non-static method SEO_Auto_Linker_Front

When I activate WordPress debug in a publication where the plugin works I get this:

`Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 74 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 81 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 88 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107 Deprecated: Non-static method SEO_Auto_Linker_Front::gen_replacements() should not be called statically in /mnt/web022/b2/66/54145766/htdocs/pcsolucion/wp-content/plugins/seo-auto-linker/inc/front.php on line 107

Is there a problem?